Best way to pipe Hot Water Recirc

Рет қаралды 29,493

Күн бұрын

Пікірлер: 40

@bills6946 Күн бұрын

I installed a recirculation system in my two story house. Every sink has a push button that turns the pump on for 45 seconds. When you want hot water, push the button. In 6 seconds, the water is hot. I ran a 1/2” pex pipe to the farthest 2nd floor bathroom and teed it into the hot water line there. The pump is in the garage next to the water heater. There is a check valve before the pump to prevent back flow. The time delay control is on the wall by the heater. The system works flawlessly. An added bonus is the water pumped into the bottom of the tank prevents sediment buildup, increasing efficiency and the life of the tank. I also check the anode rod once a year and replace it if it is dissolved.

@micahjones1049 10 ай бұрын

Caleffi products are just so well thought out. You were abel to balance the system in minuets even thought the loop information is unknow. What a great product!

@mikek2416 3 жыл бұрын

Nice of them to move the Christmas decorations out of the way for you

@Sifou_mdh 3 жыл бұрын

I love that job Nice work bro 👌

@jackt6112 2 жыл бұрын

- Your specifying the components is valuable information, but I have a question in that the head of the pump is 13', so I would guess that the loop needs to remain well below that? - I would think that unless someone is doing a gravity system, it would be much cleaner to have the returns dump into the cold water line above the water heater? *I didn't realize until this video that I would need a balancing mechanism. Thank you for taking the time to make this video.

@larrylupe 11 ай бұрын

I read, from a KZbin comment, that an expansion tank is required when you have a dedicated recirc line. Where would that be installed exactly? On the cold inlet to the water heater before the spring check valve? Or somewhere on the dedicated recirc line?

@joep6500 Жыл бұрын

Question,, did you turn the face of the pump somehow, I just received the same pump and if I install the pump exactly the way yours is my water flow would be going towards the pressure valves and you show your pressure valves water flow going towards the pump,,, so is there a way to turn the dial face of the pump so the writing on the pump is upright like in your video,,, I assuming the water flow should all be going towards the bottom of the water heater,, Thanks for any help

@KennyFlagg 3 жыл бұрын

I’d be really interested in smart plug features that could tap into room sensor data so the pump runs for whatever amount of time when occupants enter a bathroom/kitchen. Great fix for this system, dude!

@jl9678 20 күн бұрын

You can make your own. I use home assistant. I have motion sensor (philips hue)in the bathrooms. I have the taco 006e3 plugged into a tp link kasa smart plug(there are several other brands that work just as well). I set up a super simple "automation" when the motion sensor detects motion the answer plugs turns on and the pump runs

@KennyFlagg 19 күн бұрын

@ good tip, thanks! Def going to spin up HA at some point

@jwhite4 19 күн бұрын

@@jl9678 Do you have a routine that is stops the pump after N sec/min? Seems like once it runs and purges the hot water line of cool water, the pump doesn't need to operate anymore.

@jl9678 16 күн бұрын

@@jwhite4 yes, its set to run for 1 minute IF the motion sensors detect motion, AND if the pump hasnt run in the last 20 minutes.

@neppy5 Ай бұрын

Thanks for the video, a bit off topic, but the Hot Water Recirc pump is pushing water from the "return" line into the hot water tank via the drain at the bottom of the tank? Just wanted to confirm that

@mechanical-hub Ай бұрын

Actually on this model that is also the cold inlet to the tank. The hot water recirc is connected to the cold inlet of the tank. This simplifies the piping because of the mixing valve.

@neppy5 Ай бұрын

@ cool, thanks for clarifying!

@nelsod76 3 ай бұрын

Good video and info. Thanks

@russellcali9294 2 жыл бұрын

You’re videos are always really informative! This is a great way to set up recirc. If the supply lines are 3/4. Can the recirc lines be 1/2? Seems like that would work.

@MyGoogleYoutube Жыл бұрын

Did you ever get an answer?

@russellcali9294 Жыл бұрын

@@MyGoogleKZbin no. But after more research I decided to go with 3/4 my setup is a little different because I have all fixtures coming off of one big loop. But I think if you are running the line back from the furthest fixture only then 1/2 would suffice. I’m not a pro tho. Just a professional homeowner!

@MyGoogleYoutube Жыл бұрын

@@russellcali9294 Thank you :)

@jwhite4 19 күн бұрын

I have sort of the opposite issue: supply lines to fixtures is 1/2, but the lines on the water heater are 3/4. I can put a 1/2 -> 3/4 adapter at the far room, and then run 3/4 back to the 3/4 drain valve (inlet). Or, run 1/2 back to the HWH, and then use a 1/2 -> 3/4 adapter there. I'm sort of thinking 1/2 return line is better. I don't think a 3/4 return line will purge the cool water from the 1/2 supply line any faster. But, having a 3/4 return line I think means more cool water in there that also needs to be purged. Thoughts?

@russellcali9294 19 күн бұрын

I think you wouldn’t gain anything by using 3/4 for return if your supplies are 1/2. If you up your supplies to 3/4 then go for 3/4 return.

@gregtroyplumbing9858 6 ай бұрын

How much is that set up?THANK YOU for the info🙂

@ggggraaaah5236 10 ай бұрын

not a code violation by screwing into the tank shell?

@MyFortressConstruction 2 жыл бұрын

Didn't even know about those Caleffi line balancers. Very important in that situation, but how much do they cost? Couldn't find a price online.

@lawrencejoy9346 2 жыл бұрын

my question is, are you taking your hot water from the hot out tube side and returning it to the drain port thereby introducing the recirc water to the bottom of the tank, and if so is there a down side to doing it that way, ie damage to the drain valve and interior piping of the water heater, great video content

@Dudjrkfjjffjkffu Жыл бұрын

There are 2 ways to pipe your recirc line. You can either spin off your boiler drain and pipe your resirc into the bottom off the tank like he did in the video. Or you can pipe your resirc into the cold water supply line entering the water heater. If you run your pipe like this, an additional check valve is required to prevent hot water from entering your cold water system. Both are acceptable ways to pipe a water heater. When I lived in Minnesota, pretty much every plumber I knew piped their resirc to the bottom of the heater. Now I live in Tennessee and every plumber here pipes the resirc into the cold water supply. I guess both are fine, it just depends on who taught you plumbing. I do both depending on which way is going to be easier for the job I’m working on.

@tommason4702 2 жыл бұрын

People, if you want warm water coming out fast at the faucet, simply make the loop without installing the pump. Pump is not necessary at all. Once the full loop is made in the warm water line, warm water will circulate through the warm water pipe by convection effect where hot water expands in the heater and forces the water to move through the loop to colder region and back into the heater and continue the cycle. I had a water pump installed but failed and I took it out and bypassed it and I still get nice hot water very quickly better than ever before with no headache to deal with failing pump or timer. Pump and timer are expensive and difficult to maintain and absolutely not needed in most residential use. If you do not believe me, try first before you take the trouble of installing one.

@mechanical-hub 2 жыл бұрын

Well that would be true if you installed a dedicated loop sloped properly all the way from the heater to the farthest point and had no branches on the main trunk line. Most homes have multiple levels and split branches on the main, a gravity circulating system does not work for that at all. This is basic stuff, any plumber would know that.

@tommason4702 2 жыл бұрын

@@mechanical-hub My home is a big two story house (3500 sf) with 3 1/2 baths with faucets located all over the place and I get warm water very quickly everywhere including kitchen, believe it or not. The home came with a pump installed but failed. So, I replaced it with another one and it failed again quickly. So I took out and bypassed it and I am getting the warm water as quickly as before even in cold winter weather. I am sure my house, due to its size, has multiple levels and split branches with faucets located very far from each other but I have no problem at all. I guess, depending on the pipe routing, it may not work for some homes but I would think it would work for most average homes.

@jonathansage2147 2 жыл бұрын

@@tommason4702 you got lucky. The water heater is sending hot water to the high point in your loop first. Any other pattern won't work for a gravity fed loop.

@jwhite4 19 күн бұрын

Doesn't this also run the HWH longer, since that flowing loop is always losing heat and thus requires the HWH to re-heat it? [I know insulation can help with that.] My feeling is I think I just need the standing water in the hot water line purged, until replacement hot water from the HWH arrives there. [Basically what opening the faucet for some time period would do.]] From there, hot water is used; typically no additional effort is needed to get hot water back there again. I think a pump that runs a lot, or a gravity system that is circulating all the time, is wasting more energy than it needs to.

@thenexthobby 3 ай бұрын

Interesting setup, but I'd never want a pump that runs 30 mins every hour, especially mid day or while everyone is sleeping. The "learn" feature would have to be pretty smart to gauge the usage gaps, and we don't wash dishes or even take showers on regimented schedules.