Point of Use Water Heaters

A part of me wants to make a portable setup for this and take it camping haha.

That would be pretty cool! I think the hard part if you were to actually do that is making sure that it has a constant water supply.
 
That would be pretty cool! I think the hard part if you were to actually do that is making sure that it has a constant water supply.

On my list of things to do is a project like that…

As much as I wish I had space to do this on my 4Runner, my Silverado has frame rails for days and ample storage space...

The plan is to take some 4” or similar ABS or PVC pipe and make a storage tank of sorts and store water in there for camping: hand washing, dishes, cleaning, shower if needed. Most likely for non-potable use.

I can use the on-board-air to lightly pressurize the tank, or use a small pump on a low point, but integrating a water heater like that would be pretty awesome. They make on-demand units that are physically smaller as well. Small though to fit behind a truck rear seat.

It uses a hair under 1500 watts, so really the challenge would be more on the electrical side than the water supply… that said, I also have that covered… I tend to have a pretty healthy supply of Lithium batteries of various types.

Still, Id consider getting one for home... my master bedroom is 3 floors up from my water heater. This would be a worthy solution. I would install it on the hot water side anyways so by the time I used up 2.5 gallons the tank would have a high temp supply to replenish. It would use minimal energy to actually re-heat and maintain that water.
 
[MENTION=143526]theesotericone[/MENTION], you mentioned you were a plumber once? If so, I've got a quick question for you. The hot water outlet is 1/2" and my faucet has fixed 3/8" lines. So, I bought a brass reducer. With a few wraps of teflon tape, it leaked. With no tape, it leaked even more. With SEVERAL wraps of teflon tape, leak finally stopped. Is that in any way normal? I ordered another reducer hoping that's the issue. Or should I just not touch it since there is no leak

Link the adapter you purchased. Was the leak on the 1/2" angle stop side or the 3/8" faucet side?

The 1/2" fitting is NPT and those require pipe dope, Teflon tape, or both. The 3/8" fitting is a compression fitting. The thread count and pitch is different then NPT. Those should never require either tape or dope. There's a rubber seat washer in the sink supply line that creates the seal.

As long as you have the correct reducer and the leak was at the 1/2" side your fine. If the leak was at the 3/8 side you could have the wrong reducer or a bad washer in the sink line.
 
Link the adapter you purchased. Was the leak on the 1/2" angle stop side or the 3/8" faucet side?

The 1/2" fitting is NPT and those require pipe dope, Teflon tape, or both. The 3/8" fitting is a compression fitting. The thread count and pitch is different then NPT. Those should never require either tape or dope. There's a rubber seat washer in the sink supply line that creates the seal.

As long as you have the correct reducer and the leak was at the 1/2" side your fine. If the leak was at the 3/8 side you could have the wrong reducer or a bad washer in the sink line.

I bought the adapter at Home Depot. And I definitely should have been more clear in my previous post. The issue is on the 1/2" end. No tape on the 3/8" end.

So, just to be clear you wouldn't remove it and use pipe dope? The teflon is fine as is?
 
I bought the adapter at Home Depot. And I definitely should have been more clear in my previous post. The issue is on the 1/2" end. No tape on the 3/8" end.

So, just to be clear you wouldn't remove it and use pipe dope? The teflon is fine as is?


The Teflon will be fine as long as the leak is currently stopped. Just keep an eye on it. If it starts to leak again, which it probably won't, then use pipe dope first, then Teflon.
 
I have not looked at the electric boilers for some time, But I think you will find that the more expensive ones have a small thermal store built in. Enough for here in Guernsey where you only have three two hour peak periods but would not last for sixteen hours. I am sure you could put in a bigger thermal store but that means extra cost and the room to put it.Also check brand AO smith,pretty cheap!

Thanks for the tips but already installed a small unit under my kitchen sink. Still absolutely in love with it.

I just finished The Guernsey Literary and Potato Peel Pie Society. Read it? I'm sure living Guernsey you've at minimum heard about it. I really enjoyed it.
 
Teflon tape and pipe dope are the same thing. If you’re going to use both apply the tape first and then the dope. Only apply to npt fittings. Do not use on compression fittings. And point of use water heaters are garbage. Super expensive and the elements burn out fast. You’re going to be happy with your small tank heater in the long run.
 
Yes, but there are different types of teflon tape, for example
Teflon tape and canvas (Teflon tape) or Teflon tape with a sticky layer or for welding machines, as well as Teflon tapes in canvas and adhesive tape;
My husband often uses this in his work with his tools in his workshop. I understand a little bit.
 
This is pretty cool... I think I am going to get one for myself. I was looking to improve hot water delivery at home.

A part of me wants to make a portable setup for this and take it camping haha.

Like this ?

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