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Open Roads Forum  >  General RVing Issues

 > Best tankless water heaters (LP) 2.5gph or higher

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nicpaige

Ohio

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Posted: 08/22/19 12:29pm Link  |  Quote  |  Print  |  Notify Moderator

Getting to the point I need to decide how Im going to heat my water in the toy hauler. I was pretty set on tankless but if they are just a huge hassle I can use conventional. What is your opinion?

DrewE

Vermont

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Posted: 08/22/19 01:04pm Link  |  Quote  |  Print  |  Notify Moderator

I have yet to hear of anyone really happy with an RV tankless water heater. Maybe there are some people I haven't heard of yet; I am certainly not all-knowing. But they seem to have trouble with maintaining anything like an even temperature with the rather widely varying flow rates that are common in an RV.

I believe you mean 2.5 gpm, not 2.5 gph; 2.5 gph is a small trickle, a third of a cup per minute.





Fizz

Ottawa, Canada

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Posted: 08/22/19 02:44pm Link  |  Quote  |  Print  |  Notify Moderator

I wanted one for the cottage and was talked out of it by a plumber. Apparently you need good steady water pressure to have them work properly.

pianotuna

Regina, SK, Canada

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Posted: 08/22/19 03:38pm Link  |  Quote  |  Print  |  Notify Moderator

Hi,

I'd go for ten gallon electric/propane with a motoraide circuit.


nicpaige wrote:

Getting to the point I need to decide how Im going to heat my water in the toy hauler. I was pretty set on tankless but if they are just a huge hassle I can use conventional. What is your opinion?



Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp hours of AGM in two battery banks 12 volt batteries, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

Dick_B

Palos Heights, IL USA

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Posted: 08/22/19 04:20pm Link  |  Quote  |  Print  |  Notify Moderator

lots of previous posts on this Forum. Unfortunately, I think, some of the new rigs are manufactured with them; like it or not.
The best tankless water heater for an RV is an oxymoron.


Dick_B
2003 SunnyBrook 27FKS
2011 3/4 T Chevrolet Suburban
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midnightsadie

ohio

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Posted: 08/22/19 05:30pm Link  |  Quote  |  Print  |  Notify Moderator

tenj gal tank. and while your redoing this. hook it up so it will heat your rv like in a house base board hot water system.

magicbus

Nantucket Island, MA

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Posted: 08/22/19 06:51pm Link  |  Quote  |  Print  |  Notify Moderator

I love my 2.5 gallon Truma Combi gas and/or electric water heater that doubles as a furnace also using gas or electric or both.

Dave


Current: 2018 Winnebago Era A
Previous: Selene 49 Trawler
Previous: Country Coach Allure 36


nicpaige

Ohio

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Posted: 08/23/19 06:09am Link  |  Quote  |  Print  |  Notify Moderator

If you use a tankless water heater is it best to have it placed very near the shower?

ajriding

st clair

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Posted: 08/23/19 07:27am Link  |  Quote  |  Print  |  Notify Moderator

I wanted to have one but then did the research.

It will work if you are hooked up to a water source such that when showering you can let the water run the whole time, and are great if you plan to take long showers and waste water…

Bad if you want to conserve water if not hooked up. As soon as you stop the flow the water in the tankless gets hotter, then when you resume you get that hotter water, and when you let it run longer the temp goes back down. No steady temp is possible with the military shower method. Unfortunately the hot water heater is the only way for this. I wish I had a two gallon water heater as I take 1 gallon showers…

In the summer I have learned to just take cold showers. This helps a lot to save water since I boondock it is important. After two showers you get used to cold water and it is not different than washing your hands in cold water.

paddykernahan

Westland, MI

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Posted: 08/23/19 07:33am Link  |  Quote  |  Print  |  Notify Moderator

Had a tank water heater in a pop-up and it worked great.
Bought a MH and it came with an on demand water heater.
Failed the first trip due to a sticky sail switch.
Got it working with dry Teflon lube.
Water temperature varies from warm to scalding hot.
I got the temperature to be slightly more stable by plumbing in a hot water recirculation system.
Wish I had a tank water heater. Less to go wrong and constant temperature.
I will have to say winterization is easier with the on demand system we have.





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