The copper coil wasn't cutting it to heat my 1000 gallon wood hot tub. I come up and build with a water heater wood fired boiler system using a 5 gallon jerry can. #DIYhottub #woodjacuzzi #Fireheated
Пікірлер: 73
@malcolmoliver31464 ай бұрын
I bet having some insulation around the hot tub could help keep heat, as well as an insulated cover for the top. This was great to see, thanks for documenting :)
@DIYSCOTT4 ай бұрын
Yes. I am planning on building another one soon and insulation is a must
@kennethtodd37492 жыл бұрын
You need more coils of copper tube in the fire pit. The more the better and touching each other tightly. To create this new coil wrap them around a circular object of the desired size. (If you try to do this free hand you will not get optimal results.) This will give the water more time to heat up before it is released back into the hot tub by the pump. Thanks.
@DIYSCOTT2 жыл бұрын
Yeah there is definitely a science to the copper coils. I think a little larger tube diameter and about twice as many coils could help a lot
@gg-gn3re Жыл бұрын
@@DIYSCOTT smaller pipe and more of it. which gives more surface area for heat to touch.. also 5:03 is wrong you want it moving fast to absorb heat fast and add to water. Also you called your filter "cotton balls" they're called "filterballs" and they are polyester.. but you should know that you need to clean them every year or so and you can rinse it out in sinks or even wash them in laundry machine etc. They work about the same as sand but are cheaper / easier on pumps / can last longer / don't have to backflush as often
@DIYSCOTT Жыл бұрын
@@gg-gn3re Interesting... Yeah I washed the filterballs in the washing machine and they came out brand new looking
@gg-gn3re Жыл бұрын
@@DIYSCOTT yea the filterballs can last a very long time. Pretty cool technology. With the fast moving water it's simple physics, the colder the water is, the more heat will thermal transfer from pipe and bring into the tub. the overall mass of water will heat up faster but you won't notice the water being "way hotter" than when it goes in the inlet. big mistake people make. good luck
@wesh388 Жыл бұрын
@@DIYSCOTTdon't listen to the guy who suggested smaller diameter pipe with more coils. That would get the water too hot causing boiling which is NOT what you want when building a thermocycling tub heater. The boiling causes air in the line which reduces the thermocycling action (greatly reduces the flow). What you need is a larger diameter pipe with only about 5-10 coils to achieve efficient thermocycling. The larger diameter allows the water to stay cool enough so that it's not boiling by the time it gets to the top. Hope that helps
@wesh388 Жыл бұрын
@DIYSCOTT don't listen to the guy who suggested smaller diameter pipe with more coils. That would get the water too hot causing boiling which is NOT what you want when building a thermocycling tub heater. The boiling causes air in the line which reduces the thermocycling action (greatly reduces the flow). What you need is a larger diameter pipe with only about 5-10 coils to achieve efficient thermocycling. The larger diameter allows the water to stay cool enough so that it's not boiling by the time it gets to the top. Hope that helps
@stephenalexander81356 ай бұрын
Did you build the tub yourself? If so do you have a video? Looks great
@DIYSCOTT6 ай бұрын
Yes sir: kzbin.info/www/bejne/a37CkKF-jqiDqMk
@akbychoice2 жыл бұрын
There are wood fired water heaters that work very efficiently. Friends had one in their home without power.
@DIYSCOTT2 жыл бұрын
Yeah I looked at those a little bit. Could be a great solution depending on the price. Thanks!
@hiskishow9 ай бұрын
Yeah there are thousands of these in Finland and none of them have a pump. Been to loads of them and they work great. Never built one but I am sure you can find diagrams. It's called a "Palju" here
@nunyabusiness700111 ай бұрын
Been 6 months probably been said haha... you should build that fireplace better as in concrete it together and bring the bricks up above the tank as well then add a chimney, nothing special just raise the sides and front, build it so you can only access from underneath (so the fuel can is walled in) then add concrete (in the cinder blocks pack em with dirt to save on concrete and get heat mass). this will then drag more heat up and passed the can in a more direct way so youre not wasting that energy, also a chimney will drag more heat upwards through convection as well as the smoke up above ya heads while in the tub rather than ya face occasionally haha
@michaelcremins412810 ай бұрын
To make the heating tank more efficient, insulate the sides and top of with a sand and cement mix concrete.?
@DIYSCOTT10 ай бұрын
Yeah maximizing heat transfer and efficiency is key
@Sam_Holt9 ай бұрын
04:09 When you've never used an angle grinder before
@sweetmoto73624 ай бұрын
It was crazy
@hannahfowl11132 жыл бұрын
How many hours did it take to heat? I have an 8ft stock tank I’ve turned into a pool and I’m trying to heat it for winter. I have a rocket stove with copper pipe in it and it heats there water coming out to 160° but it used too much fuel because it burns so quickly. I was thinking about adding a water tank above it as well just like you’ve done to accelerate the process.
@DIYSCOTT2 жыл бұрын
Maybe like 4 hours... I got up to around 93-95 degrees. Definitely need whatever you are trying to heat to be more in the fire than I have it for efficiency. Also a legit insulated cover would help
@chuckheinch2 жыл бұрын
You can make a duL.fuel, propane and rocket. Just to get it up.tonheat.
@murraymclean51772 жыл бұрын
Nice job.
@DIYSCOTT2 жыл бұрын
Thanks Murray!
@gagehoward18852 жыл бұрын
Looks great! Did you fix the massive leak in your tub?
@aydencole98302 жыл бұрын
No he didn’t. My room is flooded. I’ve lost everything. I can’t bring guys to my room anymore. DO NOT TRUST THIS MAN!
@DIYSCOTT2 жыл бұрын
Hahaha
@DIYSCOTT2 жыл бұрын
My legal team will reach out to you! "To recover punitive damages, a plaintiff will usually have to show that a defendant published a defamatory statement(s) with actual malice or with reckless disregard as to its truthfulness." - A smart man
@aydencole98302 жыл бұрын
@@DIYSCOTT just come to my room tonight to make it all right ;)
@elchapo66592 жыл бұрын
Nice idea, however the pvc pipes behind furnace are gonna melt at somepoint add some form of heat shrink
@DIYSCOTT2 жыл бұрын
Yeah I thought they would too. They don't even get warm somehow but I will try to them protected
@eds65692 жыл бұрын
First thing I thought as well, like bruh... that pvc is too close to the pit. Lol
@DIYSCOTT2 жыл бұрын
@@eds6569 Yeah I worried about this a lot but surprisingly it never got even warm to the touch
@DwonkaGG2 жыл бұрын
Curious about the overall price you've spent on this. Obviously, not everything is based around price, as this is probably more of a passion project than the "im going to get a hottub for cheap" build, but I have a feeling that the overall cost of all the materials and time, you could have just bought a small infaltable hot tub and used the pump/heater from one of them.... WITH THAT SAID. I see unexpected potential with the current build concept. Weld a flatbox water tank together and place above the fire (You want the hot water to go to the bottom near your feet vs the top, it will heat up some much quick).Then Use the space ontop of the welded box for a pizza brick oven. I would also build drink holders for the hot tub.
@DIYSCOTT2 жыл бұрын
I never added it all up but probably around $1400-$1600. Interesting on the hot water output location. Is that just so it mixes better as it rises and doesn't evaporate as much? I love the other ideas too!
@SilentShiba11 ай бұрын
Could have looked for very old (cheap) scuba gear as a tank, since it would be safe and all-stainless steel it should be safe AF and you can weld to it
@DIYSCOTT11 ай бұрын
Smart yeah better then burning off paint
@jeff7e2 жыл бұрын
I would put a pressure release valve on that water tank just for safety. You would be surprised how powerful trapped water turning to steam is.
@DIYSCOTT2 жыл бұрын
Yeah I thought about that. Since the outlet pipe can't be shut off I figured it would be okay but always better safe than sorry!
@tinker00002 жыл бұрын
He already has one built in with the spring loaded cap.
@DIYSCOTT2 жыл бұрын
@@tinker0000 I don't know if the cap or the tank would fail first. But either way I think its relatively safe since the outlet pipe can't be shut off
@rrddaatube9 ай бұрын
Rather than a jerry can I would have gone with a radiator, either from a house or a car. They are designed to transfer heat from water to air, I assume they would work in reverse.
@DIYSCOTT9 ай бұрын
Yeah just don’t think I could expose it directly to the fire. Maybe an enclosed fire place and put a radiator in the chimney?
@bogdankovalov30182 жыл бұрын
if you stuck with wood fire idea then you need more copper and fire enclosure like old bbq grill. you have too much heat escaping. I would do 50 ft of 1/2 or even 3/4 inch copper coil or more( with right set up temperature wont be an issue but flow will be, so using bigger pipe helps. google what rocket stove is, and apply same idea. open fire pit wont do much. I did same thing, with brick fire pit stricture and top cover, so fire was going of the sides like rocket stove. with 1/2 - 50 ft long pipe water was near boiling temp. took about 3-4 hours to heat 1000gal tub also if you planning to use hut tub a lot, I would suggest switching to electric.
@DIYSCOTT2 жыл бұрын
Yeah getting the right tubing is definetly an art. Thanks for the tips!
@JustinvEmst2 ай бұрын
instead of the jerry can. Put an old car radiator above the fire. It will take a lot more heat in to the water,
@DIYSCOTT2 ай бұрын
@@JustinvEmst my only concern for that would be weird stuff in the radiators leaching into the water and if it wasn’t 100% flushed, you definitely don’t want to be bathing with antifreeze remnants
@DIYSCOTT2 ай бұрын
@@JustinvEmst not that a jerrycan and putting your water in it is any more safe, probably in terms chemicals, leaching
@JustinvEmst2 ай бұрын
@@DIYSCOTT i understand .. maybe you can make it with an extra loop and a heat Exchanger between the both loops.
@EdoPlantinga2 жыл бұрын
Seems pretty inefficient since most of the heat is not touching the heating element. Coil designs have a much higher surface where the flames hit the water.
@DIYSCOTT2 жыл бұрын
Yeah I think more coils closer to the bottom of the fire would help
@DIYSCOTT2 жыл бұрын
Where I bought the pump: www.amazon.com/dp/B088T67SQX?psc=1&ref=ppx_yo2ov_dt_b_product_details
@schwinnbiking9 ай бұрын
propane would work np, and very effectively
@DIYSCOTT9 ай бұрын
Yeah like a propane water heater?
@Nostromo_1 Жыл бұрын
You can buy a 5.5kw heater online for about $150.
@DIYSCOTT Жыл бұрын
Yeah i thought about some sort of electric water heater which could've helped for sure
@canyonmannnn Жыл бұрын
rocket stove with thermo symphyn
@DIYSCOTT Жыл бұрын
Yeah I realized trying to maximize efficiency was the most important thing so I switched to a 55 gallon drum to contain more of the heat
@SUPERFLUXABLE9 ай бұрын
you didn't use anywhere near enough copper tubing in your coil! the whole fire pit should be lined top to bottom with the coil for a hot tub that size!!! The pump isn't needed.
@samdub9 ай бұрын
All you needed in the first place was more coils dude.
@FrankWoodPhotography8 ай бұрын
You need to use a rocket stove.
@whatafailedchannel30528 ай бұрын
Skip the bull shit, get 2000w of solar, and a heating element with a pump.
@Hdhhdhdjsjnkoi Жыл бұрын
You had one bad ide and now you came with the new one bad idea😂😂😂✌️ peace man i don”t have money now to build myne but soon iwill make it i will teach u some cheats to make it cheaper and use less wood
@DIYSCOTT Жыл бұрын
Hahaha I just watched this which might help: kzbin.info/www/bejne/mWLEnpuZh9yHr68 After several attempts and researching more I realized I needed more ways to efficiently transfer the heat. If you watch the third video I made I put the fire in a 55 gallon drum and I think if you had another drum just a little bit smaller and put it inside of the drum as a fire drum then had water in between them that would maximize surface area and heat transfer. The whole thing was just an experiment and fun for me but I think a good system could work well if you make a good plan from the beginning. Good luck :)
@BabybullzLuie2 жыл бұрын
Lol you definitely don’t want to weld on a used gas can
@stormo65 Жыл бұрын
i'm sorry but you should find someone with some trade related experience when attempting a project like this or don't show all of your mistakes. I have a 15' above ground pool that i heat with wood. I used a 45 gallon drum with 50' of 1/2" copper tubing in the top half of the barrel and the fire on the bottom. I put two doors on the side, one for access to feed wood and one to clean out ash bellow the grate and to act as a vent door. A hole was cut in the top where a chimney was placed. I could move the temperature in the pool 2 degrees an hour. I live in northern B.C. Canada and the water starts at 50 degrees when i fill the pool.
@DIYSCOTT Жыл бұрын
Not many people my age where I'm from know the difference between a 2x4 and a sheet of plywood so it's hard to find good help haha. I definitely learned a good amount from this project: why I do most of my projects. I started to catch on to the 55 gallon drum idea (in the third video) to maximize heat transfer and be as efficient as possible) but I honestly just didn't have enough room or money to keep going on it. Glad yours works well.
@TheBobdabob2 жыл бұрын
11:34 That's how to burn your house down,🙄
@DIYSCOTT2 жыл бұрын
Lol. I had 1000 gallons of H20 and a fire extinguisher on standby. (Being serious I kept an eye on the fire at all times and was cautious, the video is supposed to make it look a little more out-of-hand and fun) This project was an experiment and supposed to be fun. Hopefully entertaining for you to watch and serve as a baseline to learn from for people who maybe want to try something similar.
@jsmxke70585 ай бұрын
You could also get two Jerry cans just connect em both dummy