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Old 02-20-2019, 05:26 PM   #1
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Tankless water heaters

Does anyone have experience with a tankless (on-demand) water heater in their RV? If so, what are your thoughts? Do you know if this is a substitution ETI will do?
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Old 02-20-2019, 05:34 PM   #2
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I should add: Or, has anyone done a bunch of research on tankless systems for an RV and decided against it?
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Old 02-20-2019, 05:42 PM   #3
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I had 2 Lance trailers with the tankless system. did not like them. Every time you ran the hot water, they would activate and run like 5 minutes, just for washing your hands.
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Old 02-20-2019, 05:43 PM   #4
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Tankless water heaters have been discussed. I gather they waste water, but you can read for yourself using search feature. Use the bottom box.
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Old 02-20-2019, 07:30 PM   #5
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ETI will not install tankless water heaters we asked when we had our 21 built and was told NO
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Old 02-20-2019, 07:39 PM   #6
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Quote:
Originally Posted by mconrath View Post
Does anyone have experience with a tankless (on-demand) water heater in their RV? If so, what are your thoughts? Do you know if this is a substitution ETI will do?
I've researched these and the only one that is tops based on what I have researched is the Truma Aqua Go. Not likely ETI would install any tank-less water heater, but it does not hurt to ask.

With regards to the Aqua Go, they can replace a standard 6 gallon RV water heater, but Truma requires their product be installed by authorized dealer/service center. DIY install would not come with warranty. Last time I checked it would cost around $1000 to have Aqua Go installed.

6 Gallon Surburban water heater has been around for many many years and I will stick with that.
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Old 02-20-2019, 07:42 PM   #7
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The main advantage of a tankless water heater in a residence is eliminating the standby losses from a large tank that is heated 24/7/365. The stock Suburban SW6D(E) hot water heaters are only 6 gallons and seem fairly well insulated. For the amount that one might use a hot water heater when camping what would be the advantage of a tankless?
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Old 02-20-2019, 08:01 PM   #8
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I've researched these and the only one that is tops based on what I have researched is the Truma Aqua Go. Not likely ETI would install any tank-less water heater, but it does not hurt to ask.

With regards to the Aqua Go, they can replace a standard 6 gallon RV water heater, but Truma requires their product be installed by authorized dealer/service center. DIY install would not come with warranty. Last time I checked it would cost around $1000 to have Aqua Go installed.

6 Gallon Surburban water heater has been around for many many years and I will stick with that.
Not to nitpick but the Aqua Go is actually a hybrid water heater with a small tank to help deliver constant water temperature with varying flow rates and inlet water temperatures. Also since it is near instantaneous it has a maximum input BTU of 60,000 versus the 12,000 for the stock Suburban. It has a 5/8” gas connection (vs. Suburbans 3/8”) so if this was used as a replacement on an Escape it would likely require a larger propane line.
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Old 02-20-2019, 09:23 PM   #9
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I had 2 Lance trailers with the tankless system. did not like them. Every time you ran the hot water, they would activate and run like 5 minutes, just for washing your hands.
My sister has a 3 year old Lance trailer with a tank-less hot water system and she does not like the tank-less hot water system either - convinced us not to go that route. Apparently it's difficult to maintain a steady temp during showers. Otherwise, she loves her trailer....
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Old 02-20-2019, 10:47 PM   #10
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The stock Suburban SW6D(E) hot water heaters are only 6 gallons and seem fairly well insulated. For the amount that one might use a hot water heater when camping what would be the advantage of a tankless?
Because the RV water heater's tank is only 6 US gallons, the hot water can run out. If you have a large water supply (such as in a serviced site) a tankless heater can provide as much hot water as desired.

A potential advantage is reduced weight, by not carrying around that 6 gallons of water; however, a tankless needs a larger heat exchanger and it still has some volume so there's not that much weight advantage.
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