Best tankless /on demand water heater

[Rich M]

Small camp. Shower, bathroom sink, kitchen sink. Type use. Electric from pole.

Any suggestions?

 

[Robpiat]

The only advice I have is think of it as an appliance. They aren’t super serviceable and are so cheap now that the smart money is on making the whole setup easy to change out like you would with any other appliance.

I constantly see new open box ones on fb marketplace so I’d look there.

 

[longrangelead]

I set up a propane on demand that uses D batteries, 12v water pump and 15 gal barrel for water.
all available on Amazon.

 

[survivalistd]

Navien is the brand I used

 

[carlc]

Don't use Triangle Tube. I have a combi unit in my shop house for domestic and hydronic heat. Its been a great unit, but they are out of business now, so you cant get parts or warranty. A plumber friend of mine said the supply houses have been liquidating them and not telling buyers.

 

[Jstumbaugh]

Don't use Triangle Tube. I have a combi unit in my shop house for domestic and hydronic heat. Its been a great unit, but they are out of business now, so you cant get parts or warranty. A plumber friend of mine said the supply houses have been liquidating them and not telling buyers.

Triangle Tube ceased business operations in North America in November 2025. My experience has been with Navien and Rheem. Both make good units.

 

[tt_johnsclist]

I don’t have anything to compare it to, but am very happy with my Navien.

 

[JohnsIsl]

I am happy with my propane Rinnai.

 

[Davyalabama]

Rinnai -- on propane, too.

 

[Sccritterkiller]

Rinnai...did an 8 gpm propane unit for my cabin...i run it off 100# tank, with an extra for back up.You need a 2 stage regulator. Commercial electric, well water.

 

[doc holiday13]

I would avoid electric tankless for anything high demand like a shower. For a sink only, electric makes sense. I had a tankless for my 1K sqft 2 bath home. You could not have both showers running at the same time and have a true hot shower. You'd have a lukewarm shower. That tankless required 3- 220v 40a circuits.

Propane tankless will have a much lower electric draw and be waaaaay more efficient