How To Build A Solar Pool Heater - DIY!

Wanna know how to build a solar pool heater? DIY!
Scroll down for parts list.
Howdy guys and gals! With Winter rapidly approaching, the nights are getting colder & colder. Anything we could do to extend pool time by a few weeks seemed like a good idea to us.
So… We decided to build our own #solar #water #heater!
Parts List:
Pump - amzn.to/33pkhrl
Tubing - amzn.to/2O3HaZs
Fittings: amzn.to/32FPwuv
Tube Coupler - amzn.to/364kbEP
Hose - amzn.to/2NhMatY
Hose Fittings - amzn.to/32D35L4
Tubing Clips - amzn.to/2QrMgll
Paint - amzn.to/2NXQjmq
Screws - amzn.to/2ZX7Ke2
Extension Cord - amzn.to/32HJucD
Drill - amzn.to/305Pkbe
PETG Clear Cover - amzn.to/2LWvHZC
PETG Alternative For Cover - amzn.to/2yeexDv
A #DIY solar pool water heater is a super fun project and when you’re done, you get nearly free hot water to help keep the pool temp up, making it more enjoyable and extending the time you get to use it.
Wherever you live, a solar pool water heater will make your pool warmer and more enjoyable.
Remember, you can be as elaborate or simple as you want. We just want hot water dumping in our pool!! :)
We hope you enjoyed our video on how to build a solar pool heater. Please feel free to leave a comment below.
Thanks for stopping by ~ #RCInsiders
P.S Don't forget to subscribe before you go! :)
And remember to enter our giveaways - bit.ly/rc1life

[@RCInsiders]

Hey everyone! Don't forget to check the description for a complete parts list. I have added a second unit into the mix this year. We had a lot of comments below asking to make a video of how we did it. There are also a lot of comments asking how to cover the solar heater. Here is the video - kzbin.info/www/bejne/qZW5aZJ7f7mJsNE We also show you the great results & temperature readings. Thanks for stopping by & happy heating my friends! #RCInsiders

[@toddheath4520]

Can not find your parts list, can’t find connectors for 1/2 “ pipe.

[@RCInsiders]

@@toddheath4520 Hey Todd, For some reason your comment just showed up. Sorry for the late response. The entire parts list is in the description including 1/2" fittings & couplers. Let me know if I can help with anything. Thanks for dropping by & happy heating my friend :) #RCInsiders

[@NicholasLaDieu]

I purchased through your affiliate link. thanks for the video. Buy a cup of joe on me :) I also bought a tankless water heater as well... i'm going all in on heat this year..lmao 120V . FOGATTI Electric Tank Water Heater, 8.0 I'm gonna post a review on my upcoming channel and also plug your video for this solar heater and my review of it once i set it up

[@RCInsiders]

@@NicholasLaDieu Awesome Nicholas! Hit me up when you post the video. I would love to check it out 😎 Thanks for dropping by & happy heating my friend!! @RCInsiders

[@dinhg5386]

Great video! Our pool heater has been broken for two years and it is going to cost $4000 to replace the unit so we’ve been holding off. This is a great way to heat the pool without breaking the bank! The kids will be very happy if I can extend the pool season for an extra few weeks. We just closed our pool so I’ll be doing this DIY project next year. Glad to hear that it only took you 3 hours...it’ll take me longer I am sure.

[@RCInsiders]

Thanks Dinh!! This solar water heater is definitely an inexpensive & efficient way to help keep the pool warm 👍😀 Winter is approaching fast and I refuse to give in just yet! If I can do it, you can do it :) Thanks so much for stopping by & give us a shout if you run into any issues with your #DIY water heater project next year. #RCInsiders

[@deborahkaelin-harris5840]

I did this, it worked great! Kept my pool in NJ warm all summer long, it's still 80! I did not use an electric pump, I used a Beluga pool heater, check it out. No need to use any more electric. If you have a regular intake to the pool, the garden hose attaches right to it. Worked great! I have around 500 feet of hose, could use more.

[@RCInsiders]

Awesome Deborah! I'm hanging in there at 76-80, desperately clinging to the hope of one more week before old man Winter steals the joy from me once again 😅 Glad to hear that the unit worked well and you were able to enjoy your pool all season :) It has been a joy this year for me as well. Soon pooly will be frozen and covered in snow & I will stop by every day after work to say hi & long for Spring to hurry the heck up & get here already!! LOL Have a great Winter & we will see you in Spring :) Thanks for stopping by & happy heating my friend!! #RCInsiders

[@sheilablosveren8779]

I can’t wait to get started!

[@RCInsiders]

Awesome Sheila!! It's time for some fun time 😜 Thanks for stopping by & happy building 😍 #RCInsiders

[@WeAreNotSheep2023]

This is absolutely the best video I've seen on this project. Well done.

[@RCInsiders]

Thank you! This pool heater has produced so much hot water & saved tons of 💵 over the years. Best DIY project ever if you need heated water cheap 😁 Thanks for dropping by & have a great day :) @RCInsiders

[@petepantazis7213]

Hey, I just found and watched your video. Our pool is up and running and I will now be making this awesome solar heater thanks to the time you took to make this video. I plan to make this a father/son project and am really looking forward to it. Thank you for taking the time to reply to the comments and answer peoples' questions. I may have my own soon!

[@RCInsiders]

Awesome Pete!! That's how we did it. Me and the boys had an awesome time putting this together,. We all enjoy the RC hobby & doing stuff like the solar heater. Anything we can do together :) We are actually building a second unit this weekend to see if we can squeeze a few more weeks out of the pool season. We are also going to experiment with a timer to let the water sit in the heater for a bit, maybe 10 mins on/off. Anything for 1 more day in the pool 😜 Thanks for stopping by & happy heating my friend! #RCInsiders

[@KCM25NJL]

@@RCInsiders While it might seem like a smart/logical idea in practice and without going into the science of it all too much, in general, you wanna have as much flow as you can muster 100% of the time. Your pool will always be rising in temperature due to the simple physics principle of differential heat transfer, so the more energy you can transfer in, the faster your pool will warm. Ideally then, you'd want to have a pump that can run to the limits of your plumbing setup. Or put simply another way, short bursts of hotter water is not as efficient as constant flow of less warm (but still higher T than your pool) water is.

[@RCInsiders]

Hi Martin, Thank you for your input. What you say makes absolute sense. My theory is this. At some point, when ambient temperature is chilly & there is not a lot of direct sunlight, if you leave it running it would actually be cooling the water? On mostly cloudy days, would there be benefits to deploying a timer? Your thoughts? Thanks for stopping by & happy heating! :) #RCInsiders

[@KCM25NJL]

@@RCInsiders in the case of ambient temperature lower than pool water, your plumbing would still be higher T due to its greater ability to absorb even low levels of solar radiation than your pool. Put another way, your pool will lose thermal energy faster sitting still than it would were it travelling round your barely functioning solar heater. A better method to improve the solar heater in those conditions, would be insulation from ground and wind chill. All this said, I'm no expert..... just a little scientific knowledge that may or may not hold true in practice.....so always worth experimenting :) Good luck and please let us know how it goes!

[@RCInsiders]

Thanks Martin! Well...It seems to work pretty well either way. But it does seem to work best on an always on basis :)

[@randylange5389]

A great vid on how to heat a pool by a home owner using the sun in a black box and creating thermodynamics!!!!!

[@RCInsiders]

Thanks Randy!! Building a solar pool heater...Anything for a few more days in the pool before hibernating for Winter! 😝👍👍 Thanks for stopping by #RCInsiders

[@RCInsiders]

@David Smith Hi David, In theory, I would think you could squeeze a couple more degrees out of it. I think the biggest amount heat transfer is occurring from the sun energy hitting & being drawn into the tube. I think stacking the tubing will block a lot of the energy transfer. I actually added a second unit this year & it helped a lot. I think more surface are is the key. You can see how we added the second unit tomorrow. We will publish between 4-6. See you then :) Thanks for stopping by & happy heating my friend!! :) #RCInsiders

[@angelineremington7737]

That is just awesome!!!! Thank you for the hack!

[@RCInsiders]

You are so welcome Angeline! Had a lot of fun putting it together & will be adding a second one this season :) Thanks for stopping by & happy building!! 😍 #RCInsiders

[@Ashleymommaof4]

Thanks for the video!! You did a great job explaining everything. Even though I’m not up north and I’m in Florida my pool still gets cold so I’m definitely going to try it out.

[@RCInsiders]

Awesome Ashley! I used to live in Florida as well.I remember begging for anything cold in the Summer 😜 It's the night time that is our enemy! The pool looses so much heat overnight. Up here, I always have the solar cover on when we're not in it & definitely every night. The cover and the solar heater together kept the pool very comfortable :) Stop back by and let us know how it goes. Thanks for stopping by & happy heating!! #RCInsiders

[@Moffy1961]

Great video!!! I was looking at a heat pump pool heater today and on sale here in Southern Ontario it's still $2,000. I've seen a similar set up to yours on KZbin but your thorough explanation and exact parts list makes it stand out as one of the best!! I think I am going to start to build 2 of these this week and connect them together. I only have an 18' above ground but love a warm pool. Great to hear your honesty that this is not perfect and the importance of covering at night. It is inexpensive and will give us in the north a few extra weeks on either end of the season - that is golden and all we can ask for!

[@RCInsiders]

Awesome Scott!! That's exactly why I didn't want an electric or gas heater. The initial cost is crazy!. Then you have operating cost & God forbid it brakes! I am also adding an extra unit this year (building it this week). I am also going to experiment with a timer to let the water sit in the tubes for a bit. Maybe 10 mins on/off & see how it goes. We have a similar climate here in Michigan & even in Summer it gets chilly at night. Keeping it covered is definitely helps. I aim for 78 - 82 & was able to achieve this for the most part except for the long periods of cloudy days. I like a warm pool too. If I can stay 80 or above by adding the 2nd unit I will be very happy! I wanna be in the pool for Halloween!!!😜 I know it's a dream but..... My motto is - Anything for one more day in the pool :) Thanks for stopping by & happy heating my friend!! #RCInsiders

[@Moffy1961]

@@RCInsiders Thanks for the quick reply and well wishes. I did read all the comments and I tend to agree that either a low flow or intermittent flow might work best. I'm no scientist but using the theory of a garden hose sitting in the sun...will get cold quicker with higher flow etc. One question: your first one you used 2 x 100' coils. Now you are going with a new one at 400'. Can I assume you believe that 200' would fit into each 4x4' section? Or what is your configuration? I am thinking I would try as much as would fit - maybe you've done that already? Anyway, any thoughts would be great! And yes, Halloween is a lofty goal but a good one! Cheers

[@RCInsiders]

Hey Scott, well wishes to you as well. I'm hoping 200' will fit in each side, but not sure yet. I'm going to start making the new one this weekend. I know I had a lot more room, but not exactly sure how much yet. I'm definitely going to stuff it full! 😜 Cheers

[@tinalucasmacpherson1951]

Thank you for this video. I am going to try this. Up in Canada I need a heater for my short lived summer season of pool time!

[@RCInsiders]

Awesome Tina! I know what you mean, it feels like days after we open it, its time to close it! How far up north are you? Winters can be long & brutal here in Michigan. I'm adding a second solar heater this year...Anything for one more day in the pool 😜 Thanks for stopping by & happy heating!! #RCInsiders

[@celsoruiz4339]

Good video, I built 2 of this and I used around 800 feet of tubing and added a faucet to control the flow of water going into my pool.

[@RCInsiders]

Awesome Celso! The faucet is a great idea. I just use the pump to slow the flow on cloudy cool days :) How's it working out? Thanks for dropping by & happy heating my friend!! #RCInsiders

[@judrayton]

Good job. You've got mad skills!

[@RCInsiders]

Thanks Judith! If I can do it, I know you can do it 😍 Let me know if you have any questions along the way :) Thanks for stopping by & happy heating my friend!! #RCInsiders

[@X-CaliRep-X]

I live in New Mexico and the summer heat is always between 100-104 - look forward to making this and seeing how much of a temperature difference it will be compared to the 79 degree to 120 difference you had. Thanks for the video.

[@RCInsiders]

Awesome Xx! With your sun & that king of heat you should have no problem keeping a nice & toasty pool 😀 Let me know if you need any help along the way. Thanks for dropping by & happy heating my friend!! #RCInsiders

[@ABESuperKiteDay]

I'm building mind now. Awesome project.

[@RCInsiders]

Awesome ABE! Let me know if you need any help :) Thanks for dropping by & happy heating my friend!! #RCInsiders

[@MegaDapter]

I made this exact heater and it works great. Thanks for the video

[@RCInsiders]

Awesome mega! How long have you had it running now? I am very happy with this heater. It has made pool life much more enjoyable 😍 Thanks for stopping by & happy heating my friend :) #RCInsiders

[@MegaDapter]

@@RCInsiders about a month. Definitely makes the pool more enjoyable

[@RCInsiders]

Sweet! Have a great pool season :)

[@currydon10]

Thanks for the video I live up north but definitely a project for next spring and btw nice SHIRT

[@RCInsiders]

You're welcome Donovan. It's a worthwhile project. It has made pool season so much more enjoyable :) Always loved the Sox. I actually met my favorite knuckle-baller at Disney a few years ago, Mr. Wakefield. Cool guy! Let me know if you need a hand next year, happy to help. Thanks for stopping by & happy heating my friend!! #RCInsiders

[@redgreen5831]

Great video man!

[@RCInsiders]

Thanks Red! Thanks for stopping by & happy heating my friend 😜 #RCInsiders

[@eotheleo83]

Great video!

[@RCInsiders]

Thanks Leo! Are you gonna give it a shot? Thanks for stopping by & happy heating my friend!! #RCInsiders

[@mikeswenson6613]

- Lift rate = 7 FT - pump is 1.5FT into the pool( 2 1/2FT above ground) .. exits over the pool edge and down 1FT towards my solar system .. then returns 1FT off the ground, then rises -over a 3FT length- to the pool edge and back into the pool. - my Raypak HTR is even with the pool on the ground - the "IN"line (from the pool towards my system) is 1FT above ground .. same as the "OUT/RETURN" line back to the pool. Can't thank you enough for helping me.

[@RCInsiders]

No problem my friend :) So...Unless we're not factoring in any big elevation difference where the heater is set up, it doesn't seem like you are exceeding the lift. My next thought would be blockage or vapor lock. Did you hook up the garden hose and run to ensure you have water flow through the entire system?

[@Stizzymack]

Good work! Thanks for the list of products u used also!

[@RCInsiders]

Thanks Stizzy! Are you going to build one? Let me know if you have any questions. Thanks for stopping by & happy heating my friend :) #RCInsiders

[@Stizzymack]

Thanks for responding. I'm trying, but not working out as well as yours. I'm guessing my pump is the problem. Is the smaller pump better? Im trying to use a 25 GPM utility pump.

[@RCInsiders]

The pump in the description is a 550 gph & has no problem pushing the water. It also has a 7 1/2' lift.. What is the lift cap on the pump you're using & how high are you trying to pump? We will figure this out!! :)

[@Stizzymack]

Thanks, I just ordered the one you have. I'll update in a couple days after it arrives.

[@dennisseger6717]

So I have had my pool heater up and running for a month. I did use 400 ft of hose and made 2 4x4 units. I bypassed mine with a 1 1/2 shut off that runs to 3/4 pvc using my existing pool pump so no second pump. I did put mine on the roof due to lack of good space in my yard. I also used 1x 4 strips of wood I ripped in half to hold the hose down. I also put some pieces of wood in between the 2 sets of hose to keep them separated so the heat in the box hitting all of the hose and not just the direct sun. I also laid down foil insulation on the bottom and sides and painted the inside black. I keep a 7 to 8 degree difference in the temp of the pool to the water coming out. In the afternoon it can drop to 2-3 degrees higher as the sun moves towards sunset but that still is heating the pool. Last night it went down to the low fifties but I had built my temp up to 86 degrees. This morning it is still 81 degrees and the day will only be 60 degrees but with the solar cover on and the solar heater working I we should be up to 84 again. No way that would happen with just the solar cover. This is a legit heating system. We have had some cool nights in the fifties in Ohio this year but I have kept my pool temp above 80 degrees and have been up to 86 degrees in the pool. I have a pool with 13000 gallons in it. If I had a gas or propane heater it would have been running a lot to keep the temp where I have it. One thing to watch for- if you have a 100 degree day or high nineties be careful turning it on in the middle of the day after the heat has built up. The water is so hot I had my connections start leaking because the water was about 160 degrees coming out and it expanded all my connections even in the heater and I had leaks. These units are heavy but only hard to put up in the spring as gravity helps take them down in the fall. I also installed handles on them. I did buy high quality thick plexiglass so it lasts. Well worth the $395.00 I spent.

[@RCInsiders]

Awesome Dennis! I actually swam today, even though we barely hit the 60's in Michigan. With the cover on, we only dropped to 80 on a night in the low 50's. At midday, I had 82 in the pool & constant 98 coming from the solar heater unit. An absolute great investment for sure! Thanks for stopping by & sharing your experience with everyone. Happy heating my friend! :) #RCInsiders

[@StuEvans]

Can't scroll through hundreds of comments but just a point I notice is that matt surfaces will absorb more heat. Like the video!

[@RCInsiders]

Thanks Stu! You are correct, matte/flat black will absorb more light/energy. Are you going to give it a try? Let me know if I cam help. Thanks for stopping by & happy heating my friend :) #RCInsiders

[@StuEvans]

@@RCInsiders building my test unit right now! Thanks for the offer. I've only got a spare fluval 501 aquarium filter pump at the moment. Hoping it can do a bit of a filter at the same time. Fairly big but temperatures are hotter. Only got half a tin of black fire paint and a black hose. If I have it in the shed then its going to be used! Watch this space.

[@StuEvans]

Wow. Just primed it with the hosepipe and still works with it on the shed roof. Was worried about the pressure. Needs a bit more black spray but it's a success. FYI it was a fluval 405. Thanks for the the idea. Cheers Captain

[@RCInsiders]

Awesome Stu! I love it...If its in the shed I'm gonna use it 😜 Exactly how I feel :)

[@RCInsiders]

Cheers mate 😅 Hope you have a great Independence Day :)

[@mikeswenson6613]

Pump works fine. There are 2 connectors( that had screens in them ) in my 'system', for connecting the 1/2" irrigation pipe to the 5/8" garden hose. Both connectors were 'jammed' with fine dirt, etc. I cleaned them out and took them out for better flow. I flushed each 100' section out, then put it all back together. It barely trickled out back into the pool. Since it's late in the season( here about 3 more weeks to go ), I'll just rely on my gas heater. Next year .. Plan A --> get a bigger pump; Plan B --> integrate/install a 'diverter system' with the pool pump. Again, Mucho Thanks for all your help.

[@RCInsiders]

No problem Mike. Have a great weekend my friend :)

[@mikeswenson6613]

@@RCInsiders U 2, Mi Amigo

[@RCInsiders]

Thanks!

[@mikeswenson6613]

@@RCInsiders With so much happening this Summer, here's the 'final' latest on my solar system----- - pool -- above ground, 15' x 30' x 4' - pump( 1 1/2 HP Hayward ) system cycle is 7:00AM -to- 5:00PM daily .. sand filter. - heated ( Raypack 155,000 BTU HTR ) to 86F. Over night temp goes down to 78F .. then for about an hour +15 min, heater brings temp back up to 86F . - heater used to come on 3-4 times during the day for 15-20 min to keep pool at 86F ... now solar unit does that job. - solar system: 1600GPH submersible pump( Home Depot - $62 ); distance from pump to solar system( 2/100' coiled 1/2" irrigation pipe )= 47'; distance from solar system back to pool= 40'; total travel distance( from pump back to pool )= 287' . - solar system gets sun from 10:00AM -to- 4:30PM. - at 12noon, I turn on solar system( plugged into separate 20amp, GFI outlet with an outdoor-covered light switch before it ). - temp coming out is 118F. - after 30 min running, temp holds steady at 96F. - next Spring I plan on adding an in-line valve( to adjust flow ) & another 100' coil. Again .. many thanks for your tips & help.

[@ronm6585]

Thank you.

[@RCInsiders]

You're welcome! Let me know if I can help :) Happy heating my friend!! @RCInsiders

[@mikeswenson6613]

Not yet .. other project to finish today will try your suggestion tomorrow. Will let you know. REALLY appreciate your 'babysitting' me.

[@RCInsiders]

No problem my friend! Let me know how I can help :)

[@MarriedManWoodworking]

Thanks for sharing. A special thanks for including links to the materials you used. Most vidsos don't include the links.

[@RCInsiders]

You are most welcome my friend! Let me know how yours turns out? Thanks for stopping by & happy heating my friend 😀 #RCInsiders

[@frankschoutens]

What a great explanation video to make a solar heating. I will start immediately tomorrow and am curious about the results. Greetings from the Netherlands!

[@RCInsiders]

Hey Frank...Wow the Netherlands, that' awesome!! You gotta stop back by & let us know how it goes. Let me know if you have any questions. Thanks for stopping by my friend & happy heating! #RCInsiders

[@humberton2306]

Let's test it. OUCH! It worked!

[@RCInsiders]

😅 The solar pool heater has worked very well 😜👍 Did you build yours yet? Thanks for dropping by & happy heating my friend! 😀 #RCInsiders

[@chriscrawford1666]

Great job! Tip. when using a spade drill bit as the point comes through the board, stop and finish drilling from the other side this will keep the wood from splintering. Your video was freaking awesome!

[@RCInsiders]

Thanks Chris!! Yes...6 years in carpentry & non stop projects for decades...I know better!! Don't tell anyone what I did!! 😂😂😜 Did you build one? Thanks for stopping by & happy heating my friend! #RCInsiders

[@chriscrawford1666]

@@RCInsiders Hey RC, I was a licensed general contractor building hands on custom homes for 25 years. I am getting ready to launch my KZbin channel soon. I have six how to videos in the can that need editing. I am naming my channel "Just Sitting Around". I lost my ability to walk or stand two years ago do to MS so I work of a wheelchair but do more everyday than most guys. Yes I just picked everything up today to build the solar pool heater. I was at my buddy's house for the Memorial Day BBQ the pool was open and cold. last year my buddy's wife and her girlfriends turned up the heater and ran up the gas bill. I looked at a few builds. Yours was the best, to the point and put together very nicely. Thank you for the inspiration. Rock On Brother!

[@RCInsiders]

Awesome man! I spent my construction time in Florida with the union apprenticeship & working mostly at Disney rehabbing/building rides. It was a good time & learned a lot, but after the first kid couldn't do the layoffs anymore. Sorry to hear about the MS, but on the positive side you have inspired me to keep on keeping on! Good luck with your project. I am 100% happy with the results. We raised our pool temp from 59 on opening day to 75 in the first couple days & hit 86 yesterday & had to shut it off. 80-84 is where I want to keep it. During sunny days we are getting a continuous flow of 94-99 during peak sun. We let it sit for 30 mins then kicked it on and had 149 degree water coming out for 5 mins! Make sure to stop by & let us know how it goes & how you're doing :) Fight the good fight brother!!

[@imdeplorable2241]

Disney? My dad worked at Disney World about 1970 or '71. And, my brother and I worked on EPCOT in '82. We're all electricians, local 915 in Tampa, living in PA now. I'm going to build one of these for an Intex PureSpa hot tub I'm buying. The water heater is weak in them so, your setup should work well with it. GREAT VIDEO. Thanks.

[@RCInsiders]

Awesome Mike! I remember riding around with my Dad (union painter) yelling "RAT" at all the job sites as Disney began breaking the labor unions & started building Disney non union. I ended up with one of the last couple union contractors left at that time, BVCC out of carpenters local 1765 out of Orlando. Good times back then man. Too bad the big mouse had to go the way of most big business. My thing back then was "Organize the South". I lived it & worked it. I loved Florida, but never understood the resistance to organized labor. Any how, hope your project goes well & nice meeting you. Thanks for stopping by & happy heating my friend :) #RCInsiders

[@jorgeguzman4296]

This look good, i'm gonna try it, i'm in oaxaca mexico

[@RCInsiders]

Awesome Jorge! Hope to have ours up & running soon. Can't wait to get in the pool :) Thanks for stopping by my friend & happy heating!! #RCInsiders

[@sebbiedamato45]

I made a few of these over the years. I suggest putting the water back into the pool via the skimmer so the water will recirculate and not just heat a small are around the hose. Also, if you can tap the outlet of the pump and not have to use a separate pump, that'd be just as good. Maybe a higher volume of water moving through the heater, would not be as hot going into the pool, but either way, it works.

[@RCInsiders]

Awesome! Are you making another one? I went with the submersible for simplicity. Also. I didn't want to run the pool pump constantly to run the heater. The little pump costs pennies a day to run & I can use timers and easily adjust the flow rate. Thanks for dropping by & happy heating my friend :) #RCInsiders

[@sebbiedamato45]

@@RCInsiders Understood about the small pump. The only other thing I might do would be to try and get the , colder water at the bottom of the pool.. I have an unboxed setup I use whenever I need to add a lot of water and also at the beginning of the season.

[@RCInsiders]

@@sebbiedamato45 Cool! I have had good success with the pump about midway depth. It's been awesome the last couple years actually being able to enjoy the pool thanks to solar heat :) How much tubing is in your unboxed unit?

[@jm6560]

You could heat your house or garage all the way through the winter using this same setup. You just need some heat-sinks inside to absorb and re-radiate the heat -- something like concrete floors, or clay benches, to provide thermal mass, with the tubing zig-zagging throughout .

[@RCInsiders]

That would awesome JM! I'm going to shoot for an outdoor shower this year. I love this idea. Would love to be able to heat the garage & actually be able to use it more than 4 or 5 months a year :) The applications for solar heat are virtually endless. Are you going to make one? Thanks for dropping by & happy heating my friend!! #RCInsiders

[@thereefinglife5494]

Thanks for posting! I'm looking to build a couple of these as well. What would really be much more helpful (something that no one really seems to talk about with these diy solar pool heaters) is what kind of results you got on the temperatures in the pool. How much did it raise the temp, over what time period, how big is your pool, what was the ambient temperature, etc. thanks!

[@RCInsiders]

Hey D! These are some of the many variables that make solar heating different from gas/heat. Here are some of my experiences: We got our heater running for the first time this year yesterday. The pool water temp in the morning was a disgusting 58 degrees! The outside temp was 59 to start and reached a high 0f 69. There was approximately 3 hours of full sun with the rest of the day being mostly cloudy with some sunny breaks. After 9-10 hours of run time the pool water temp at the end of the day was 64 degrees. This is a 10,000 gallon pool. I am also adding a second unit this year & expect to more easily maintain the perfect (to me!) 80 -82. There were times last Summer during long stretches of sunny days that we didn't run it at all as it was making the water too hot! Pools lose tons of heat overnight and then you have to fight it back into shape again :) I anticipate that the second unit will reduce/eliminate this struggle. When not occupied and especially at night!!, the pool is always covered with a cheap solar cover. This adds a little heat throughout the day and helps a ton with overnight heat loss. I have also been able to produce extremely hot water (140 - 160) by letting the water sit in the unit for a while before kicking on the pump. There are tons of arguments about using timers, but the majority say it's better to heat a lot of water a lower temp than heating a small amount of water at a higher temp. I'm going to experiment with this & decide for myself. Hope this helps. Thanks for stopping by my friend & happy heating! :) #RCInsiders

[@dennisseger6717]

I made 2 and used 400 ft of 1/2 in tubing. See my comment 👍

[@RCInsiders]

Awesome! 👍👍

[@lp4815]

Good video... Thanks! However, through your test outside I kept thinking you needed to place it where the pool would not cause a shadow on your coils!

[@RCInsiders]

Thanks L P! I know...Fighting the shadows is a struggle in my small back yard. We kept moving it throughout the pool season, fighting for every ray of sun 😜 I'm adding a second unit this year...Now to convince my wife to let me screw it to the roof! 😅 Thanks for stopping by & happy heating my friend #RCInsiders

[@renem218]

Cool idea body

[@RCInsiders]

Thanks rene! Anything for a few more days in the pool :) Thanks for stopping by & happy heating my friend! #RCInsiders

[@chavezinsurance2012]

Great video, so far is one of the most easy ways build a DIY water heater, thank you for sharing, just one question, how long does it take to rise the water temperature in the pool? Again great video!!!

[@RCInsiders]

Thanks Gustavo! There are tons of variables that will determine how quickly the pool will heat. How much direct sunlight & how often the pool is covered will be the biggest factors. I keep it covered all day with a cheap solar cover to compliment the solar heater. A pool looses a lot of heat overnight, so always keep it covered :) I can't really say how long it would take to get your pool as warm as you would like it. Too many variables. I can tell you that it has made my pool much more enjoyable with the extra heat from the solar heater. Thanks for stopping by my friend & hope you enjoy your pool :) #RCInsiders

[@fannotafan1374]

Your voice along with the accompanying cricket chirping.... You are today's Bob Ross

[@RCInsiders]

Lol! 😂 Haven't heard that name in a while. Thanks for stopping by & happy heating my friend!! #RCInsiders

[@karronguerero8732]

Thanks for this video. Looks easy for me to do. Did your size of pool keep a comfortable temperature when you actually went for a swim? Did you have to keep it running to maintenance the temperature or did it hold heat for a long while for bathing? Thank you

[@RCInsiders]

You're welcome Karron! Up in the north here it's hard to keep the heat in the pool, especially overnight. Every minute that we are not in the pool, it is covered with a solar cover like this - amzn.to/3df4b5f If you live in a warmer climate, you may not want the solar cover. The biggest thing is to keep it covered overnight with either the solar cover or a regular cover. The pool loses tons of heat overnight & then you have to reheat all over again. I am also adding a timer to the outlet this year and will have the pump kick on every 10 - 15 minutes to allow the water to get super warm. With keeping the pool covered & running the solar heater, the pool is always comfortable to swim in. There was a couple times last year when it was hot & sunny for a few days in a row that I didn't run the solar heater at all as it was getting a little too hot :) Thanks for stopping by & hope you have an awesome pool season.Make sure to stop back by & let us know how your project turns out! :) #RCInsiders

[@naillz1818]

Excellent. I'm gonna try this for my 30k gal inground pool and save some gas from the propane pool heater

[@RCInsiders]

Awesome Karriem! This unit should put a big dent in that bill :) If you live in a sunny warm place, a couple of these units could probably eliminate the expensive gas heater for the most part. Let me know how it goes & if you have any questions just let me know. Thanks for stopping by & happy heating my friend!! #RCInsiders

[@davepardi849]

Thanks again for the great video. I’m in the process of making one of these and I was wondering if you could tell me which cover you went with and how did it work out for you. Was it easy to attach and did it make a tight seal Thank you

[@RCInsiders]

Awesome Dave! I originally went with the sheet in the video, but it got broken over the Winter. I went with the plastic listed in the description this time and like it better & its cheaper, much clearer. It makes a nice seal. I cut 4 strips of wood & screwed them into the 1x4's. Pretty awesome project. How's yous going? Thanks for stopping by & happy heating my friend! #RCInsiders

[@drhender6943]

Instead of painting the backboard black, you probably should apply some kind of a reflective surface. Any heat/energy that gets past the tubing would be absorbed into the painted wood if it's black. Instead, you really want that energy reflected back into the pipe. There is also no reason to slow the flow of water through the pipe. While it is true that slowing the water increases the final temperature of the water, you run the risk of over-heating the pipe. If you let more water run through the pipe, the temperature rise would be less, but the same amount of energy would be absorbed in the greater volume of water and the same temperature rise in the pool would be achieved. BTW, it would add some cost, but if you were to introduce a small solar-powered pump into the system to move the water through the panel, you wouldn't even need a timer-- if the sun is bright enough to drive the pump, it would be enough to heat the water. ;)

[@RCInsiders]

Is this what you're planning on doing? I have thought about a reflective background, but it is already so hot in the box that I didn't want to end up melting the tubing :) I am completely happy with the heat being produced now. If you go that route, can you stop back by & let us know how it works? I am going to experiment with the timer, but the general consensus seems to lean toward full constant flow. We shall see....😀 Thanks for dropping by & happy heating my friend! #RCInsiders

[@middleclassgear5869]

Because of the way the sun hits my yard (lots of shade) I believe the best location would be to place the heater on the roof of my shed next to my pool. Do you see any issues with this that I may not have considered? Amazing innovation very impressed with the simplicity and effectiveness!

[@RCInsiders]

Thanks MiddleClass! I always tell my wife the next one's going on the roof...To no avail 😜 The only 2 things I would really considers are - Can the roof handle the weight & can you safely secure it to the roof. When the unit is full & running, its in the 60-70 pound range. If you answer yes to those, I would go for it. I could get nearly all day sun if I could put them on the roof. If you get the chance, I would love to see it when you're done! Thanks for stopping by & happy heating my friend :) #RCInsiders

[@mickandrews9458]

Thanks for the video, just making one myself in the UK. Did the clear cover make much of a difference to the water temperature coming out of your solar heater?

[@RCInsiders]

You are most welcome Mick. Wow, the UK! Great to have a visitor from across the pond 😀 Yes, the cover made a 3-7 degree difference, depending on the amount of direct sunlight. As an added benefit, it keeps everything out of the solar unit like rain and grass when mowing. How are things over there? Hope all is well with our friends from the UK :) Thanks for stopping by my friend & happy heating! #RCInsiders

[@toddjones2713]

Great video. Did you need an adapter for the small pump to fit your 5/8-inch garden hose?

[@RCInsiders]

Thanks Todd! I didn't use an adapter to connect to the pump. I just cut the end off & pushed it over the fitting on the pump. It's pretty snug & didn't leak at all last year. I'll be getting ours out here within the next few weeks. can't wait to be beck in the pool!!! 😍 Thanks for stopping by & happy heating my friend :) #RCInsiders

[@christophermarino322]

yeah man. go red sox!

[@RCInsiders]

Hey Christopher! Yeah...Go Red Sox....I mean Tigers!! 😜 Love em' both :) Thanks for stopping by & happy heating my friend!! #RCInsiders

[@christophermarino322]

awesome! i’m in boston. hey where did you end up buying the clear corrugated sheet for the cover?

[@RCInsiders]

I got it at Menards but broke it this Winter. I'll be covering it with this this year - amzn.to/357xdiZ Or something like it. Much cheaper! :) It don't really have to be rigid. Just be clear & trap heat. Plexiglass would be ideal but its expensive.

[@davepardi849]

Thank you for the awesome video. It was very informative and easy to follow. I’m going to try and make one myself. Do you think I could use the red pex tubing and paint it black. It’s about the same price as the tubing you used and I could get it at my local Home Depot. Thanks again

[@RCInsiders]

You are most welcome Dave! I think you could paint it, but I'm thinking this could be a huge pain in the ... Good luck & have fun with your project. Let me know if ya' need a hand :) Thanks for stopping by & happy heating my friend!! #RCInsiders

[@anthonycentola8831]

Awesome video can u keep the pump in the pool for heat as you are swimming?

[@RCInsiders]

Hi Anthony, While the pump is rated for underwater use, I simply unplug it from the outlet when anyone is in the pool. Peace of mind :) Thanks for stopping by & happy heating my friend! #RCInsiders

[@jkopvo]

Hi, Thanks for your video! Two questions: 1. I'm interested in the clear plastic covering that you used (in lieu of plexiglass) in the video. I don't see any links to that. I assume you purchased it at Lowe's or Home Depot. What is that called and how much does it cost for a 4 x 8 sheet? 2. It looked like your initial output temp measurement was made immediately after turning on the pump. I would expect that to be high due to the fact that the sun had been baking the heater (with no water flowing) for quite some time. Have you had a chance to make a similar output measurement after running the water for several minutes (after any initial heating had been dissipated)? Assuming so, what temp difference did you then see? I'm hoping to build something similar, except a tighter coil on 4 x 4 plywood to keep the weight down. Thanks again, John :)

[@RCInsiders]

Hi John, Here is the video of how I covered it, temps & heating times. It should answer all your questions :) kzbin.info/www/bejne/qZW5aZJ7f7mJsNE Let me know if I can help Thanks for stopping by & happy heating my friend!! #RCInsiders

[@jansweeney1333]

Oh mainly cloudy days thought some sunny days 🏴󠁧󠁢󠁳󠁣󠁴󠁿🏴󠁧󠁢󠁳󠁣󠁴󠁿

[@RCInsiders]

For sure :)

[@billtritle2785]

Greetings! Thanks for posting this. I have a couple of questions. I was wondering how long the pump will run before the temp of the output will start to drop. I'm thinking of times I go to my garden hose and turn it on, and it puts out hot water for 15-30 seconds, then turns cold. Certainly the black plastic tubing, in a black box placed in sunlight will provide much more heat. It makes sense that you wouldn't want your flow too high, because the temp would drop faster. Did you check the output temp. after 15 or 20 minutes? It seems a timer would be better, to let the hose fill with pool water, then sit for a bit, then start to pump again. I noticed another comment said a constant flow would be better than bursts of hot water. Would you mind to expand on these thoughts? - Thanks!

[@RCInsiders]

Hi Bill, It's a little like the hose, except you are not feeding the tube with a continuous supply of ice cold water. There are tons of variables that will affect the outgoing temp, with the biggest being direct sunlight. On that day, which was hot & sunny, the temp dropped to 96 in around 15-20 mins, then ran at a constant 88 til we lost sun. I now have 2 units running and on a similar day, it puts out a constant 96 - 100 at peak sun. I also am experimenting a little with the timer. I let the water sit that day for 30 mins & had 149 degree water! So far with experimenting, I think a slow constant flow seems to heat the pool best. But man is cool to see 150 degree water coming from a solar heater you made! :) Thanks for stopping by & happy heating my friend! #RCInsiders

[@bogdankovalov3018]

Nice vid, planning to try it out. so any poly tubing work ? checked homedepot poly tube "dig" but it says its "heat resistant"

[@RCInsiders]

Hey Bogdan. I'm not sure about the homedepot stuff. All I can say for sure is the tubing in the description has not melted & it's gotten pretty darn hot. Thanks for stopping by & happy heating my friend! #RCInsiders

[@fpvj83]

Looks good. How long did you let the water circulate before you dipped into the pool? When did you close up your pool?

[@RCInsiders]

Hi, After opening, it only took a few days to the temp into the 80's. Trying to get a jump on Winter this year, we closed a few weeks ago. Then we had a string of nice days! Could of got another week!! If you are in a warmer climate, you probably have a good amount of heating time left. Here in Michigan, once the weather turns, it goes fast :) Are you going to build one? Let me know if I can help. Thanks for stopping by & happy heating my friend. #RCInsiders

[@ivankaclijsen6768]

Hi 👋🏻 there, Awesome project! I’m gonna try to make this myself😊 I’m a woman, but ey, of course i can do it💪🏻 But why do you need the pump? I was thinking to use a bypass after water gone through the intexpump, before it gets back into the water. Or am I thinking not clearly? Love your video, thank you so much for it! Best regards from The Netherlands 🇳🇱

[@RCInsiders]

Awesome Ivanka!! Girl power 👍😍 I have several reasons for going with the pump: Simplicity. After building the solar heater, simply plug it in and make heated water :) Flexibility. I want to be able to experiment with timers. I don't want to "have" to run the pool pump all the time to run the heater. You absolutely can go that route if you want to. I can help any way I can. I would need a pic of your pump set up & the exact size of all the pipes/fittings. Awesome...The Netherlands! A place I always wanted to visit 😀 Looks like an amazing place! Please let me know if I can help with anything. Thanks for stopping by & happy heating my friend!! #RCInsiders

[@anthonycentola8831]

Thanks for the video Im building this before I set up my 16’x48 above ground pool Would you recommend filling the pool by hooking up a garden hose to the unit and then heating the water as it fills the pool?

[@RCInsiders]

Hi Anthony, I don't see any reason not to. Keep in mind that you will be feeding a continuous flow of ice cold water through the heater at a high flow rate. Heating will probably be minimal. If you're not in a hurry to get the pool filled up, I would suggest turning the water on/off every 10 mins or so to allow the water to sit in the heater and warm up. Of course this will double the amount of time it will take to fill the pool.. Once the pool is full, the heater won''t have to fight the supply of ice cold water. I would say experiment with the 10 on/off and see if you like the results. Thanks for stopping by & happy heating my friend! #RCInsiders

[@anthonycentola8831]

Awesome thank you I will let you know how it works out

[@RCInsiders]

Awesome :)

[@dennisseger6717]

My is a 48” deep 24” round pool

[@RCInsiders]

Awesome Dennis! Hope You're enjoying pool season :) Thanks for stopping by my friend #RCInsiders

[@spike2794]

Nice job, looks like a big pool, was it enough to do the job?

[@RCInsiders]

Thanks Spike! Running the solar unit & keeping the pool covered with a cheap solar cover all day allowed me to get a full extra month out of pool season :) Make sure to cover the pool at night, as this is when almost all of your heat loss occurs. I will be getting everything set up next weekend...Can't wait!! At the end of the year last year, I added my Christmas light timer to the mix to allow the water to sit in the heat for a few minutes. This worked even better and heated the pool well. Thanks for stopping by my friend and hope you have a great pool season :) #RCInsiders

[@marynolan7467]

I'm getting ready to start building this. I have read through a lot of the comments and couldn't see an answer to my question. What are your thoughts on making two 4x4 boxes and having them hinged together so that I can fold in half for easier storage and mobility? I'm bound and determined to prove my husband wrong. That this will heat the pool and be easy enough to move when he is mowing the yard. 😊 The only thing I can think of to do different is to make sure the hose between the two boxes will give enough when I fold them together. I plan on putting a handle on the outside and a small latch to hold them together when moving. Your thoughts?

[@RCInsiders]

I love it Mary!! Here are my thoughts: Instead of using a hinge, perhaps make 2 (or more!!) separate units. You could connect them with a length of garden hose when in use. This would greatly reduce the weight as you;re goal seems to be mobility. It is already September and I am still maintaining 82-86, which is just awesome for Michigan! Without the solar unit, we would already of closed for the year. I love the idea & would love to hear your results. If you are in a warmer climate than Michigan, your are going to love the early Fall temps you will get. Thanks for stopping by & happy heating my friend!! #RCInsiders

[@jamesplunkett9769]

Thank you for sharing your project and results. I used a hose instead of tubing. The sun is not heating the hose (using 200 ft, coiled like a spiral, 100 ft on top of the other 100 ft.). Why is tubing preferred over hose? Thanks in advance for your reply.

[@RCInsiders]

Hi James. The black tubing will draw in more heat. I think stacking is a no no. The more surface area that is exposed to direct sunlight the better. I'm not completely sure, but I believe the tubing would hold the better as well. And one thing is for sure, it's a lot cheaper :) For starters, I would figure out a way to not have the hose stacked. If you have a timer, I would set the pump to only kick on every 15 minutes or so to allow the water to sit for a bit. I'm going to try using my Christmas light timer and try a few time intervals til I get the temp I want. Thanks for stopping by and good luck my friend. Hope that helps #RCInsiders

[@jamesplunkett9769]

Great advice and thanks for the prompt reply!

[@RCInsiders]

You're welcome James...Have a great weekend!

[@jrvest3533]

Just watched your video liked it and wondering how it held up

[@RCInsiders]

Hi JR, It has held up very well. Just opened up a couple weeks ago & it's still putting out nice warm water :) Did you build one? Thanks for dropping by & happy heating my friend! @RCInsiders

[@amydoyle3213]

Just one question. for the connection from the end of the irrigation tube to the hose that attaches to the pond pump. You have the same connector as on the other side right?. the 1/2 inch to Female hose connector. Then you have the other end of the hose cut off and pushed onto the pond pump. If I am correct in saying that my question is what size hose is it (the green one).

[@RCInsiders]

Hi Amy, Are you asking what size the hose is, or the fitting specifically? The pump comes with several different fittings so you can use any size hose from 1/2" up to 3/4, as long as the fittings are 5/8" to plug into the heater. Hope that makes sense & hope that is what you are asking? Thanks for stopping by Amy & happy heating! :) #RCInsiders

[@christineamaronespianostud1252]

I was wondering also how you attached the green garden hose to the water pump. Do you screw it into the pump directly without the fittings?

[@RCInsiders]

@@christineamaronespianostud1252 Hi Christine, On the end that attaches to the pump is cut off & slips/pushes over the fitting that screws into the top of the pump. If you can't get a perfect fit. you can use a small band clamp to secure the hose to the pump. Hope this is what you were asking? Thanks for dropping by & happy heating my friend!! #RCInsiders

[@Th3Bearded1]

Question for you. I have watched multiple videos on this same type of heater being used. I appreciate your one of the only ones who put what pump they were using so thank you! I have the same pool as you but smaller version. 18ft×21ft. My question is how long do you keep your pump running? Only during the day or 24/7? Also, how long did/does it take to actually make a difference in the pools temp its self?

[@RCInsiders]

You are most welcome! I only run the pump during the day, 6-10 hours depending on the sun. It gets cold here at night, so running at night would actually cool the pool. Make sure to keep it covered with a cheap solar cover whenever you're not in it & especially at night. This has made a huge difference. The amount of direct sunlight you get will determine how fast/well it works. On opening day our pool temp was 59. We had 3 nice sunny days in a row & raised the temp to 77 in those 3 days. I have added a second unit this year & often times shut it off as the pool gets too warm for me. I like the pool around 82. I ran the pump yesterday while at work & when got home the pool was 90! Thanks for stopping by & happy heating my friend! #RCInsiders

[@Th3Bearded1]

@@RCInsidersthanks for the info! If possible could you do a quick video showing your new setup with the additional hoses and what kind of flow your getting out of the system that goes into the pool?

[@RCInsiders]

Will do my friend. Might be next weekend as already working on video for tjis weekend. Have a great weekend :)

[@RCInsiders]

Hi, Here is the video with the 2nd solar unit added: kzbin.info/www/bejne/qZW5aZJ7f7mJsNE Happy heating :)

[@ryaninalaska01]

Hi thank you for the video that was awesome. Thanks for linking to the pump I just ordered one. Is there any special reason to use a hose rather than more tubing as you come out of and go back into the pool? Thanks!

[@RCInsiders]

Thanks Ryan! If you can swing it, tubing will work just fine. I just found it much easier to work with hose outside of the solar unit. Much more flexible & not constantly trying to curl up. Good luck with your project & let me know if I can help in any way. Thanks for stopping by & happy heating my friend :) #RCInsiders

[@ryaninalaska01]

@@RCInsiders makes sense thanks!

[@RCInsiders]

You're welcome :)

[@chrish4723]

Hi RC Insiders, thanks for the video! I was curious how you still like this idea, has it been worth it to keep using it, ect? would love to hear a follow up. Thanks again!

[@RCInsiders]

Hey Chris, I have actually added a 2nd unit this year & the unit in the video is entering its second season & still making awesome warm water :) Has it been worth it...100%! I have actually been able to enjoy the pool every day for a second year now. I remember how cold & uncomfortable it used to be & now I easily maintain the perfect (to me) 82-85 degrees. I often times unplug the solar unit as it can get the pool too warm for my liking. I left the pump on all day the other day on a 84 degree sunny day & came home from work to a 91 degree pool! After the initial cost of materials, I get to finally enjoy pool season for a few cents a day 😍 Thanks for stopping by & happy heating my friend! #RCInsiders

[@chrish4723]

@@RCInsiders thanks for the quick reply! we're in new england and our pool doesn't get full sun all day so I am definitely looking into this. thanks again!

[@RCInsiders]

You are most welcome! Make sure to get any cheap solar cover you can. I always keep it covered when not swimming. Keep it covered especially at night as this is when a pool loses most of its heat. Have a great week! :)

[@samsaucedo7798]

Looks great! I'm building mine...but question, is the pump safe to run it while someone is inside the pool or do you take it out?

[@RCInsiders]

Awesome Sam! I usually swim with it when I am by myself, but unplug it when others are in. Just for the sake of making it a little safer, unplug the pump while swimming. Thanks for dropping by & happy heating my friend!! #RCInsiders

[@shawnkuffner]

The plastic clear top you used, will that hold up to the heat?? Seems like a much better option for price. I was going to build one in a few weeks.

[@RCInsiders]

Awesome Shawn! Yes, it holds up well. Here is how I covered it - kzbin.info/www/bejne/qZW5aZJ7f7mJsNE Works well & holds a lot of heat :) Let me know if you have any questions. Thanks for dropping by & happy heating my friend!! #RCInsiders

[@jasonkersch546]

I'm working on this and it's going very well. Can you please tell me what kind of plastic can be used?everything I'm seeing is very expensive. Also what would you think of wrapping Saran wrap plastic around it? Also did you secured or do you just lay it on top? What do you do when it rains? I would think water would get inside

[@RCInsiders]

Awesome Jason! I hear you...Plexiglass is expensive! I found a piece of clear plastic last year on sale for 1/2 last year but it broke over the Winter. There are 2 alternatives in the description that I am trying this year. They're not as rigid, but work. I thought about saran wrap, but I think it will just melt. It may be worth a shot to try though if you're almost finished with the heater. If you made the heater with pressure treated wood & then painted it, the rain & water is not an issue. The on;y rel thing we want the cover for is to retain the heat. The cover is screwed down with drywall screws to try to make a seal & to keep it in place. Glad to hear your project is going well :) Thanks for stopping by & happy heating my friend!! #RCInsiders

[@jasonkersch546]

@@RCInsiders reply. I went to the store and bought the plastic wrap used for wrapping furniture and I'm going to give that a try.. Thanks again for your help and have a great weekend

[@RCInsiders]

Awesome Jason, If you get a chance, let me know how it works? Have a great weekend as well!

[@mikeswenson6613]

- When 1st turning on your pump, how long did it take for the pool water to go thru the 200' of pipe and back into the pool ? - And..when the pump is off, is there any 'back wash'( water from the pipe reversing/siphoning back into the pool ) ?

[@RCInsiders]

Hi Mike, It took a few minutes to fill the tubing. No, I have not had any back flow of water. Is this a concern you have? Happy heating :) #RCInsiders

[@darrellryan7077]

Hey, nice vid. Was wondering any info on if the tubing is safe to run constant hot water throughout and back into the pool?

[@RCInsiders]

Thanks Darrell! What kind of safety concerns do you have? Thanks for stopping by & happy heating my friend :) #RCInsiders

[@jamess1787]

It's probably not rated for scolding hot water, but 140*F is on the low side on my Hot Water Tank. If you pump water through it pretty consistently: it'll keep the tubing cold.

[@RCInsiders]

I haven't had any issues with the solar unit :)

[@matthewowen1360]

Did you tubing wear out from the sun and chorine? Thanks

[@RCInsiders]

Hey Mathew No, the tubing is still doing fine years later. Just closed up for the year & put the heater for winter storage. I will replace the cover for next season, but the tubing is still good. Thanks for dropping by & have a great day :) #RCInsiders

[@tonygau65]

Does the pump runs all the time or is on a temperature switch so when power a certain temp the pump turns on

[@RCInsiders]

Hi, Yes this runs until you turn it off. I have also set it up with a timer with good results. Yes, you can also put an inline temp switch if you want that would turn the pump on & off at a det temp. Did you build a solar pool heater? Happy heating my friend! #RCInsiders

[@Whatsofreakingever]

If you measure after the plug just is plugged in??? that water was how long in there? had to wait 15 mins to do measurement

[@RCInsiders]

Hi Addy, With all the question marks, I'm assuming you want to know some things? I;m not exactly sure what you want to know. Can you word your questions a little differently & I will try to help any way I can? I think I got the gist of your inquiry, but want to make sure. If you don't reply, I will try to address your questions on assumptions. Thanks for stopping by my my friend :) #RCInsiders

[@happymonarch]

@@RCInsiders I believe Addy is implying the actual temperature reading from the system may not be accurate because the water that is coming out has been in the tubing for quite some time. Addy is also suggesting that waiting enough time to make sure the water coming through has not been in the system for longer than the amount of time to make a complete pass would probably produce a reading that is more accurate.

[@RCInsiders]

Hi Ashley, On a sunny day, I can get a constant 95-110 degrees outgoing temp for hours. I forgot to turn the system on the other day & got home from work & plugged it in & had 198 degree water for an hour until it came down to 105! :) Happy heating my friend :) #RCInsiders

[@robertpowers7856]

I know it’s been a while since your video , Question, 1700 gal above ground pool, using same materials as you used, if I move the solar heater 20’ away from pool what size pump should I use? Thanks from cheboygan Mi

[@RCInsiders]

Hey Robert! Only been to Cheboygan once a long time ago & loved it :) As long as there is no big elevation variance between the solar heater & the pool, the pump listed in the description should work fine. As I'm responding to you right now our wind chill is -4! Just looked at the poor pool and it looks like a snow sled hill :) Cannot wait to fire up the heater this Spring :) Thanks for dropping by & happy heating my friend!! #RCInsiders

[@NicoMilani]

Hi. Nice very clear video !! I bought your own pump. I wanted to ask you if the pump manages to make the water go up for about two meters. In my case, the heater must be raised off the ground. I will try here in Italy.

[@RCInsiders]

Awesome Nico! Yes, the pump should be able to handle that lift. Italy? That's awesome! I always wanted to visit. It looks like a beautiful country... Good luck with your project & let me know if you have any questions. Thanks for stopping by & happy heating my friend :) #RCInsiders

[@NicoMilani]

@@RCInsiders Thanks for the reply. I will try and let you know. A last question. What are the dimensions of the box? Thanks

[@RCInsiders]

Great! The box is 4'x8'. This is a standard sheet of plywood over here. Hope it;s the same over there? This keeps it simple by not having to cut the plywood :)

[@sherilsun]

Hi there - so we built ours Friday and yay sun yesterday, we got it out there and let it bake, the water comes out hot, but only for a minute or two, then turns cool. We used PEX not irrigation tubing and painted it all black... any thoughts? everyone's seems to work, can't figure out what we did wrong. Thanks so much.

[@RCInsiders]

Hi Sheril, What is the the outgoing vs incoming temp? If you used the pump in the description, do you have it set to the lowest flow rate? After 5 or so minutes, you will have a temp drop. Depending on outside temp & amount of direct sunlight, I usually maintain a 5 - 15 degree temperature differential throughout the day, lessening as sun strength weakens towards evening, Also, did you cover it with clear plastic or plexiglass? I will look into painted PEX vs irrigation insulation/penetration factors, but I can't see it being a major issue, other than the paint possibly preventing sunlight/heat to enter the tubing. I have also experimented with using a timer for cooler cloudy days to allow the water time in the unit to heat. As long as you are maintaining a positive outgoing temp, you are good as the outgoing water will constantly be heating the water. I also cover the pool with a cheap solar cover at all times when not in use, especially at night as nigh time is when pools lose the most heat. Thanks for dropping by & happy heating my friend :) #RCInsiders

[@sherilsun]

ok so maybe it is working fine if we only get a slight difference after the initial hot water. We put plexi on top of but if it isn't going to give us the results we thought, I was thinking of returning the plexi since its so expensive and just covering with clear household plastic wrap. Thoughts?

[@RCInsiders]

@@sherilsun Hi, So I would definitely not try plastic wrap. Here is a good Plexi alternative - amzn.to/3ggbVXD Also, paint can prevent heat transfer, but only marginally. What was your temp differential? Is the pump on low? There are competing theories about which heats a pool better...High flow rate with small temp differential vs low flow high differential. I have had success with both.I have also had good results experimenting with timers.

[@holacarmen]

how long did it take to heat up the pool. or how long did you leave the pump running to heat up the pool?

[@RCInsiders]

Hello, There are a lot of variables that will determine how quickly the pool will heat up, with the biggest being amount of time the unit will get direct sun. When we opened the pool this year we had 3 full days in the low 80"s & sunny all day. We were able to get the pool all the way up to 82-84 in those days. We easily maintained those temps all year & often times shut it off as it would get the pool too warm! Here in Michigan the pool season is just about over, but we are still holding on to 76-80. If you live in a warmer climate in the south, you should have plenty of heating time left :) Hope that helps. Thanks for stopping by & happy heating my friend!! #RCInsiders

[@21DelphiDr]

Great video. Plan to begin the build this week, but I have a general question- Obviously lots of variables, but ball park, how heavy is the system when “full” and running. Considering making it slide in and out under my deck in a drawer like fashion.

[@RCInsiders]

William...What an awesome idea!! Of course tons of variables, but running I would put mine in the 50-65 lb range. I gotta see this thing when you're done! Stop back by & let me know how it goes? Thanks for stopping by & happy heating my friend!! #RCInsiders

[@21DelphiDr]

RC Insiders Forgive me as I’m sure it’s covered in the comments, but I’m ready to hook up and start heating and I’m debating what kind of pump. What do you recommend? The pond pump you are using- any idea the gallons per minute or hour you get?

[@RCInsiders]

Great William! Here is the pump - amzn.to/2O1LhFj This pump has an adjustable flow rate so you can dial it in to get optimal heat transfer. It has a max flow rate of 550 gph, but I don't run it that high. It seems to heat the water better with a slower flow rate. Did you end up making it slide in and out? Happy heating :)

[@21DelphiDr]

RC Insiders So, build is nearly complete. Covid has made Plexiglas hard to get, so there is just some plastic sheeting for now. It may be thicker than needed, Matt switch out for something more clear. I was able to do it like a drawer. Is there a East to share pics, or give me your phone # or email address. I’ll text or send them. I’m at about 245 ft of 1/2” pipe. My pump should be arriving today from Amazon. I didn’t want a submersible pump remaining in the pool so I went with an in-line water transfer pump. I’ll try to attach a link. We shall see. Using my 1250g/h pump I use to drain the pool/cover (way more flow that I want, but couldn’t resist testing it out) with an intentional kink in some garden house to return the water I was able to get a sustained rise of 17 degrees. 81 up to 98.

[@21DelphiDr]

BOKYWOX 110V 93W NPT3/4'' Circulator Pump 3-Speed Control Domestic Silent Hot Water Circulation Pump（RS15/6R）

[@jarvisyang6893]

Thank you for your videoo. it enlighted my idea. I am not familiar with this plumber parts. I can easily find necessary parts by your video. I have a question. Can we use plastic wrap to coil one set of heater instead of clear cover? not sure it has same effect or not. Happy summer! Thanks

[@RCInsiders]

Awesome Jarvis! Glad to hear you are building a solar heater :) I would not recommend plastic wrap as it won't retain heat & will be easily destroyed by the weather. How big is your pool? Thanks for dropping by & happy heating my friend!! #RCInsiders

[@jarvisyang6893]

@@RCInsiders Thank you for your confirmation. I like to watch your videos. My pool is 15 ft round above ground pool. we are at Hamilton ON. it is not hot at here. I am building the solar heater following your instruction now. But my kids had started to swim in our pool. they look like don't feel water is cold. 😀

[@RCInsiders]

Cool 😎 Warmer weather is coming soon :)

[@bhearts77]

im curious if that 120 degree temps were sustained the entire time you filled?

[@RCInsiders]

Hey trapfarm There are a lot of variables that affect outgoing temp. Outside air temp, duration of direct sunlight, pump flow rate, length of tubing are a few factors that will help or hurt. Checking the temp after 5 - 10 minutes that day, the outgoing temp was down to 100 degrees. This year I will be adding my Christmas light timer to allow the water to sit in the coils for 5 - 10n minutes before the pump kick on. This will be an experiment as when it gets real hot here, I don't want the pool to get too hot! You could also add more coils if this don't get you where you want to be. This was a fun project and it produces hot water! It's a good feeling :) Are you thinking about making one? Thanks for stopping by & hope you have a great pool season. #RCInsiders

[@Ghost_Of_FPV_1151]

Why did you go with the 800GPH Submersible Pump? Was it because you have two coils? . I was looking at going with a smaller 300GPM because I was looking at one coil

[@RCInsiders]

Hi, Yes, That & I wanted to be able to push through a second unit in the future as I have now. This pump also has an adjustable flow rate as well. For a couple more bucks its well worth it to have the flexibility to expand :) How big is the pool you are going to heat? If you only use one coil I would think a 300 gpm pump would work. Thanks for dropping by & happy heating my friend :) #RCInsiders

[@chrisasst]

Did you cut the garden hose in half, is that what the copper fittings are I your parts list?

[@RCInsiders]

Hey Chris, Yes, that way you have some fittings & can make any hoses you need to connect the pump & the solar heater. If you decide to make a 2nd solar unit these fittings will really come in handy :) Thanks for stopping by & happy heating my friend! #RCInsiders

[@gerry427]

How many gallons is your pool ? How long does it take to heat it up ? How warm have you gotten the water in the pool ? Tryingto do one as you have but wondering how many units i have to make. Thanks , Gerry from San Diego, CA

[@RCInsiders]

Hi Gerry, Our pool is 9,000 gallons. I like to keep the pool between 80 - 84. I am running 2 units this year. On opening day the pool temp was 59. We had 3 nice days in a row and got the temp up to 81. The following day was hot & all sun all day. Had to shut the heater off as the pool hit 86, which is hotter than I like. Last year with one unit, it took 2 days longer to get the pool temp up, but was still very happy with it as we maintained 78-84 throughout the season. There are tons of variables that will affect heat, with the biggest being the amount of direct sunlight the solar heater gets. These last couple days have been cool and mostly cloudy, but have still maintained 79 in the pool. Tomorrow will be cold but mostly sunny so should be no problem to quickly hit 80+ & swimming by afternoon! :) How many gallons is yours? Thanks for stopping by & happy heating my friend!! #RCInsiders

[@gerry427]

@@RCInsiders Really appreciate the reply ! Our pool is in inground at 15000 gallons. Was contemplating buying typical solar pool panels but the less expensive type leak too much as I understand. We like our pool at 88 - 92 but rarely see it that high but 1 - 3 days in peak summer. Just ordered a solar cover so hoping to keep in more heat and water overnight lost due to evaporation. Already use a liquid solar cover which I think helps a bit but nothing significant. Wondering.....How many panels like yours I might need ? I get full roof sun at least 8 hrs daily and I am south facing. Currently we are at 75 - 85 degrees outdoor temp and pool water is at 79 - 82 naturally. Getting another 6 - 10 degrees would be awesome. Appreciate your time and advice very much !!!!!

[@RCInsiders]

Hi Gerry If you're looking to maintain that high of a temp, I would go with 2 units. With our 2nd unit, I was able to fit 240" of tubing. I think if you're getting that much direct sun you should have no problem getting those temps. The solar cover will make a huge difference in retaining heat overnight. From what I hear, the liquid does next to nothing. I keep ours covered at all times when no one is in it. I only get about 4 hours of direct sunlight. I actually just plugged mine in. Outside temp is 48 and sun been hitting unit for about 30 mins and already getting 84 degree water. Have a great day and enjoy that California sun! :)

[@leogetz31ify]

Great video iam not a handyman .. will copper tubing work better

[@RCInsiders]

Thanks Leo! Copper is only a slightly better insulator & will give you only a marginal benefit at best in this heater. There is also the issue of how copper reacts with chlorine or salt. Additionally, the tubing in this video is sooo much easier to work with. Let me know if I can help along the way...Spring is almost here!! Thanks for dropping by & happy heating my friend :) #RCInsiders

[@leogetz31ify]

@@RCInsiders thanks

[@RCInsiders]

@Leo Getz You're welcome :)

[@charsbucketofbooks6144]

Could you not hook it up to your filter pump, so after the water goes through the filter it goes through the heater coil and then back into the pool?

[@RCInsiders]

Hi, Yes you could do that. There are a few reasons I went with the pump: Simplicity. Plug in the pump and start making warm water. Timer. I wanted the ability to experiment with using a timer to allow the water to sit in the heater for a bit before pumping back in the pool. Pool pump. I didn't want to go through the process of getting all the right fittings to convert and then find out it created too much pressure for the pump. You can absolutely do it, it's just a little more involved. I can help you through it, but I would need a pic of your pump/hose set up and the exact sizes of the fittings. Happy to help if I can :) Thanks for stopping by & happy heating my friend!! #RCInsiders

[@rhodie351]

Love your videos! Can you give the measurements on the stands you made for you heater! Thank you

[@RCInsiders]

Thanks Rhonda! When I get back I will measure the stands. Are you wanting to make them just like mine? Thanks for dropping by & have a great day!! @RCInsiders

[@rhodie351]

Yes Please…I followed your video and made my pool heater! And it works wonderfully. But I am taking your advice and doing a second one so that will give me a 1000 foot of heated water. Living on top of a mountain in Wva I need all the heat I can get😂

[@rhodie351]

Also what thickness plywood did you use 23/32 or 15/32? Making my second one this week.

[@RCInsiders]

Hey Rhonda! I use a 1x6. The bottom is 30" - The top is 40" & the upright is 20" Cut a 45 on the upright & screw it all together :) You don't necessarily need the stands. I use them to angle the heater toward the sun. Congrats on building your solar heater!!!!

[@RCInsiders]

Hey Rhonda, One of each. The one on sale or cheaper as they are both suitable for the heater :)

[@brentharpe7792]

How long were you able to keep your pool up using this? I'm in north east Indiana so I have similar weather. Also how much warmer did it make your pool water itself? Also have you opened up for the year yet? If so how warm is yours getting?

[@RCInsiders]

Hey Brent, We are trying to get everything together this week and hope to have the solar heater running by the weekend, or sometime during next week. We were able to keep the pool open til the end of September last year. The time the heater was getting direct sun by that time was severely reduced by that time. During the Summer, I was able to raise the temp 2-5 degrees every day depending on how sunny it was. When the days were long, we were able to maintain 78-82 degrees. As Fall set in, we were still able to 75-79. I am planning on adding a second unit this year to try and squeeze a couple extra weeks. The biggest thing is to keep the pool covered at night as it looses so much heat overnight. Thanks for stopping by & heating my fiend! #RCInsiders

[@brentharpe7792]

RC Insiders so I have a question. With 200 ft of piping how does a 7.2 ft high pump make it all the way through all the piping and back up the height of the pool wall? I did 100ft of black tubing and have about the same amount of lead hose and return hose from my box and I can’t get the water to flow through it.

[@RCInsiders]

Hi Brent, So there has to be an issue somewhere as the pump should have no problem making it through that amount of tube. Did you make sure the flow rate on the pump is adjusted high enough for the system? Did you undo the hose from the heater and run the pump to ensure the pump is working correctly? Also, undo your return hose and see if you have flow coming out of the heater. Basically to check for any blockages in the circuit. After you do all your trouble shooting and determine everything is adjusted & working properly, it could end up being a faulty pump. it's rare, but it happens. Hope this helps & let me know if I can help.

[@RCInsiders]

Hey Brent, How's it going? Did you get it working?

[@brentharpe7792]

@@RCInsiders Yes I did I needed a new pump thanks for asking! Although it has not been in use yet as its been 55 and rainy since I built it lol how long do you think on a couple nice days itll take to warm up a 10,000 gallon pool? its suppose to be 80-85 and sunny this weekend I was really hoping to be able to get in my pool lol

[@sarahaxtell4476]

Just a question - we built this and have been using it for about a week. The water is very hot as it sits in it but once we start the pump it drops it down a lot. Do you set the pump to a very low flow so it goes slower? Our pool hasn’t increased the temperature above 76 even on sunny days. What do you suggest?

[@RCInsiders]

Hi Sarah, I do set the pump at the lowest setting. How much sunlight does the unit get? What state are you in? The biggest thing you can do is keep the pool covered with a cheap solar cover at all times when you're not in it, especially at night. Before I started covering, we were losing 5-10 degrees overnight. Then the solar unit was playing catch up for the better part of the day. As Fall approaches, you will get less direct sun, aka a weaker sun. The more time the water spends in the unit the better. Here in Michigan we are close to the end of pool season :( If my wife would allow me to put the heater on the roof I know I could get a few more weeks LOL. Let me know if I can help with anything. Thanks for stopping by & happy heating my friend! #RCInsiders

[@sarahaxtell4476]

RC Insiders - thanks! We live in the Southern Tier of New York State. Right now on sunny days it is from 10:30-6:30. We do keep it covered unless we are swimming in it at this point. I just ordered a timer to see if that helps. It does heat the water - just would like to keep it a little warmer. Our pool season is also coming to an end - sadly! Thanks for all the tips - we really appreciate it!

[@RCInsiders]

Hi Sarah, I have experimented with the timer with good results. There are competing theories on timers. The general consensus appears to be that you are better off heating a lot of water a little bit, as opposed to heating a little water a lot. But my opinion is that as the sun gets weaker in the Fall, the water is not getting enough time in the unit to heat. I ran continuously through the Summer, but have now switched back to timer & am holding desperately to 82 in the pool :) Days are getting shorter all too quickly, but I'm not closing til I can't keep it over 72!! Winter is just too long to give up just yet!!! Let me know if the timer helps if you get the chance. I'm currently running 15 minutes on/off. Ugh...I miss the pool already!!

[@jansweeney1333]

Hi, It’s 5th Oct. 2023... & just seen your invention ‘Solar Pool Heater’ absolutely fabulous.Could this system work in a colder climate such as Scotland 🤔( not for a pool but shower/ sink ) . I’m looking into such a system for my van whilst touring the country & or rest of UK.? 🏴󠁧󠁢󠁳󠁣󠁴󠁿🏴󠁧󠁢󠁳󠁣󠁴󠁿

[@RCInsiders]

Hi, Yes, I would think it could be used this way. I am actually going to build an outdoor pool shower next year using this system. It is solar, so you will need some amount of sunshine to be affective. My thoughts for you would be to fashion some sort of insulated tank to store the warm water during sunny periods until needed. Always wanted to visit Scotland! Hopefully one day :) Thanks for dropping by & have a great day!! @RCInsiders

[@jansweeney1333]

@@RCInsiders thanks have a grt day 🏴󠁧󠁢󠁳󠁣󠁴󠁿🏴󠁧󠁢󠁳󠁣󠁴󠁿(cloudy day today as per usual 🥶)

[@RCInsiders]

Thank you 😍 Any sun yet?

[@jansweeney1333]

@@RCInsiders nope just rain,rain & more 🌧 🏴󠁧󠁢󠁳󠁣󠁴󠁿🏴󠁧󠁢󠁳󠁣󠁴󠁿

[@RCInsiders]

Did the sun ever come out? 😁😀

[@keels5497]

Great video. I have a 17k gallon pool. Do you believe 200 ft of tubing would heat this pool up at all? Live in NE.

[@RCInsiders]

Hi keels, I had pretty good success with this unit last year. I am adding a second unit this year & plan to experiment with a timer to allow the water to sit for a bit in the heater. Maybe 10 min on/off. I think I can fit 3-400" in the unit. The more tubing the better. We have a similar climate. With the solar heater & keeping the pool covered with a solar cover (especially at night!) I was able to keep the pool 78-82 degrees all season. I'm aiming to keep it over 80 all season with the 2nd unit. Without the solar heater, the pool frequently dipped to 70 - 72. I definitely think it will heat it up, but it is solar. On super cloudy days heat out put will be reduced. It will still heat the water somewhat just by the tube being in a hot box, but direct sunlight is key. Thanks for stopping by & happy heating my friend! #RCInsiders

[@keels5497]

RC Insiders I’m going to give it a try with 300 ft and see if I can see a few degrees increase overall in the pool. We are sitting at 72 degrees right now with overcast and low 60s all week. I keep a solar cover on it day and night. Thanks again.

[@RCInsiders]

Awesome! It's crazy how much heat they lose overnight!

[@billkohl7178]

What type of plastic did you cover the solar box with? What did you find that was affordable?? Thanks very much

[@RCInsiders]

Hey Bill, I know plexiglass is crazy expensive! In the description there are 2 alternatives. Thanks for stopping by & happy heating my friend! #RCInsiders

[@billkohl7178]

RC Insiders thanks very much

[@RCInsiders]

You're welcome :)

[@Tauro12b]

I live in Gran Canaria and will be installing this in my Airbnb villa. This means that I myself am not on site and can monitor. I will set a timer so that the pump only circulates water when the sun is up. But as there is a lot of sun on Gran Canaria, the water will quite quickly reach over 30 degrees. Is there any gadget that can automatically turn off the power to the pump when the water is 30 degrees.

[@RCInsiders]

Hi Sven, The only way I can think of is with a temperature switch on the pump that would cut the power at a certain temp. I will look more into this but the ones I'm familiar with cut power when A temp change is detected. We have to find one that is programmable. Thanks for dropping by & happy heating my friend!! #RCInsiders

[@kellyforstner5235]

What size pump. We did douple rolls using300' fo 1/2" With 20' feet of line to and from pool

[@RCInsiders]

Hey Kelly, This is the pump I use - amzn.to/33pkhrl I'm so jealous that you're still using the pool! 😜😀 I'm so sad looking out the window & seeing a frozen pool :) Do you get to use your pool year round? Thanks for dropping by & happy heating my friend!! #RCInsiders

[@ryanforeman2581]

You had tested it previous to the video. Lol. The second you plugged it in water came out the other side. It would have taken well over a minute for that little pump to get water all through that tubing. I know because I built this but with 1000 ft of irrigation tubing. I have an 19000 gallon pool so I had to scale it up. Good video though. Thanks.

[@RCInsiders]

Awesome Ryan! How well is it working to heat that big of a pool? What kind of climate do you live in? How much direct sun is you 1,000" of tubing getting? Thanks for stopping by & happy heating my friend!! #RCInsiders

[@src4409]

I'm also interested in the larger scale workings for our pool.

[@RCInsiders]

Hi Sammantha, I've been waiting for his reply on this too. I would have to assume that with 1,000' of tubing, he has to be getting some very good results. He's saying he has 5x the tubing and only 2x the size of my pool. I have added a second unit this year and I don't have to run the heater all the time as the pool get too warm. Thanks for stopping by & happy heating my friend :) #RCInsiders

[@reygonzalez6062]

Does the pump matter as much? I'm thinking if the water pushes through too fast the water will cool the tubing instead of the other way around. My pump runs water about the same rate as a waterhose. What do you think? Should I find a weaker pump?

[@RCInsiders]

Hey Rey! So there are competing theories about flow rate & adding timers to allow the water to sit for a bit in the heater. I think the key is to find a happy medium. The pump in the description has an adjustable flow rate which make fining your happy medium much easier. My best advice for your situation would be to get an exact temp reading of the pool water & an exact temp of the water coming out of your heater. If you are getting a couple degrees with that high flow rate you may be ok. You might not be heating the water a ton, but you will be moving a pretty high volume of water at a slightly elevated temp. Thanks for stopping by & happy heating my friend! #RCInsiders

[@RCInsiders]

Hi GM. I;m thinking there has to be a flow rate that is too high. At some point, the flow rate would make heat transfer difficult/impossible? This is why I think finding the happy medium is important. What do you think? Thanks for stopping by & happy heating my friend #RCInsiders

[@RCInsiders]

Gottcha. So do you think the flow rate of a garden faucet is too much for this style heater with 200' of tubing? 400'? Thanks for your replies 👍

[@RCInsiders]

Great...Thanks again for your replies!

[@romeodhaliwal148]

If I use a sump pump 1/2 HP instead of a small pump, will it still be able to heat the water up ? Or will the flow and pressure be too much to heat the water?

[@RCInsiders]

Hey Romero. The bigger pump will definitely move the water much faster. You could always add some more coil, or even better, you could add a timer to the outlet & have the pump kick in every 10 minutes or so. This will really allow the water to heat up nicely. Thanks for stopping by my friend and do stop by to let us know how it goes :) #RCInsiders

[@j.co.6373]

The timer method is actually less efficient. With a timer you are drastically reducing your volume. Yes the water will come out 120 degrees but 5000 gallons at 94 degrees has a far better heat exchange then 400-500 gallons at 120 degrees when using a timer. The previous numbers are based on 94 degrees = 500 gph pump x’s 10 hrs a day and 120 degree setup = 100 gph pump at 4-5 hours a day on timer. You need to know the total gallons of your pool and how much your heater pump puts out. 1/2 hp with far more coil would be a lot better. If your pool is 10,000 gallons, and your heater puts out 100 gallons per hour, the heater would essentially be fighting a losing battle. With 10,000 gallons I would recommend 1000’ ft of coil with a bigger pump. The structure design of this setup is great but it could have at least double the coil in each 4’x4’ section. And a bigger pump is definitely needed which you can get for around 30$ on amazon. With 1000’ of coil you would not be able to run them in sequence though and would need to have the water “T” off, going to 500’ each section.

[@RCInsiders]

Hey Jerry. Great job working out the math! I am adding a second unit that will contain 400' of tube, giving me a total of 600'. I will do some experimenting with the timer & see how it goes. I don't know the exact numbers, but lets say the coil holds 25 gallons of water. Now say I can heat that water to 120 or more evry 10 minutes & run that cycle for 10 hours that's hundreds of gallons of 120 degree+ water. This coupled with having the pool covered with a cheap solar cover should be more than enough to keep a good temp in the pool. Keeping the pool covered at night is the biggest thing as this is when most of heat loss occurs. Thanks for stopping by my friend & happy heating! :) #RCInsiders

[@spencerwilton5831]

RC Insiders there is no advantage in running the pump slowly or allowing the water to spend a long time in the coils. Heat transfers faster the greater the temperature difference. By circulating the water faster, it will be cooler, and pick up heat more efficiently. As above, a large volume of water heated very slightly will ultimately give you much more heat into your pool than a tiny volume heated to a higher temperature.

[@RCInsiders]

Hi Spencer, Isn't this theory completely dependent on direct sunlight? Even when there is no sun the inside temp of the box would still be warm and allowing the water to sit for a bit would at least let the water warm a little? Either way, I will experiment with the timer in search of a constant 80-84 degree pool :) Thanks for stopping by & happy heating my friend! #RCInsiders

[@toddgraham6006]

Hello ! what plastic cover did you use? Where did you get it? Thank you!!

[@RCInsiders]

Hey man, You can go with plexiglass, but it is pretty expensive! Check this out - amzn.to/357xdiZ It's not rigid, but it will work just fine for around 20 bucks. You just want something clear to let the sun in & trap some heat. How big is the pool you're trying to heat? Thanks for stopping by my friend & happy heating! #RCInsiders

[@toddgraham6006]

@@RCInsiders Thanks for the tip!

[@RCInsiders]

You're welcome! Send us some pics of your project! 😀 #RCInsiders

[@tcproaudiollc]

Do you have a temperature reading of inlet and outlet while it's been running for an hour? Water sitting in the pipe will be very hot just curious what the flow temperature is at how many gpm flow rate.

[@keviniwu]

@@RCInsiders This is out of stock at Amazon. Any ideas where else you might find one of these? Thanks for the great video!

[@radkastankova6004]

I have a question. If I will have a solar panel on the roof - 3 meters above water level and 20 meters from the pool. What pump power is needed?

[@RCInsiders]

Hi, Here is the pump I use - amzn.to/33pkhrl This pump has a 10' lift & pumps up to 800GPH At 3 meters this pump may be enough. If you want to go on the safe side, I would go with a pump that has a 20' lift. This one is a good pump - amzn.to/3Jq9S2L I'm thinking about putting one on my roof too & will have to go with the 20' lift pump. Let me know how your project goes if you get the chance. Thanks for dropping by & have a great day :) @RCInsiders

[@scottmemberg]

so its been 2 years how has it held up and how long did it take to bring up the temp of the entire pool?

[@RCInsiders]

Hi, It has held up well. I keep it covered with a tarp throughout the winter. I actually just got everything set back up yesterday & now starting to heat the pool. There are variables that will determine how long it takes to get up to temp like amount of sun, outside temp & night time temps. Still getting into the 40's and 50's here at night. A good week in the 70's & hopefully 80's & I will have the pool back into the high 70's. 78 is where I am comfortable but easily gets into the mid 80's if I let it when I have guests. Are you going to build one? Thanks for dropping by & happy heating my friend!! #RCInsiders

[@joewilly7278]

hey do you need 200 feet would 100 feet be good

[@RCInsiders]

Hey Joe, While a hundred feet will heat water, really the more the better. How big is your pool? Thanks for dropping by & happy heating my friend :) #RCInsiders

[@dinahlee3793]

What did the water in the pool end up being after it ran for a few days???? please answer😊

[@RCInsiders]

Hi Dinah! After opening we had some nice warm days with all day sun. Got the pool from low 60's into the upper 70's & low 80's in a couple days. Are you building one? Thanks for dropping by & happy heating my friend!! #RCInsiders