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Old 02-19-2015, 08:06 AM   #1
1 Rivet Member
1986 32' Excella
Albuquerque , New Mexico
Join Date: Nov 2013
Posts: 11
Tankless water heaters

Can some one give me suggestions for a tankless water heater for an '88 Excella. If anyone has installed one please tell me what brand you used and how it works. Thanks

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Old 02-19-2015, 08:26 AM   #2
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2017 26' Flying Cloud
1976 Argosy 28
Alamo Heights , Texas
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Search the forums for "precisiontemp" (use the Google search, it works better.) You'll find several threads about people using that model and comparing it with others.


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Old 02-19-2015, 08:37 AM   #3
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1975 20' Argosy 20
Chestfield , Kent
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....and Atwood license the Precision Temp technology for their unit. I'm having with the Atwood installed at the moment simply because it could be supplied/supported by any Atwood dealer.
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Old 02-19-2015, 09:04 AM   #4
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1964 22' Safari
modesto , California
Join Date: Jul 2010
Posts: 567
In my opinion the two best are PrecisionTemp and AquaHot. We did a Full Monty on our Safari and upgraded to the PT Twin Temp JR. witch does both on demand hot water and also does Hydronic heating for the coach. This has been the best investment I have made for the trailer. We are very happy we chose PrecissionTemp. They are made here in the USA and the customer service is outstanding. Go with the best and forget the rest.
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Old 02-19-2015, 09:48 AM   #5
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1986 32' Excella
Albuquerque , New Mexico
Join Date: Nov 2013
Posts: 11
Thanks for the help guys.
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Old 02-23-2015, 01:20 PM   #6
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2015 27' FB International
San Francisco , California
Join Date: Aug 2014
Posts: 35
We had an Atwood on-demand installed a couple of weeks ago, and I'm pulling it out tomorrow to replace it with an Atwood XT water heater. The on-demand unit is just garbage, mostly due to its inability to detect flow unless we have multiple faucets open; showers were otherwise ice-cold. It's supposed to detect flow at a 0.5 GPM, but ours takes considerably more than that to kick in (difficult to accomplish at all if you're using the water pump).

On top of the obviously defective unit (we already went through two just to get a working one when it was being installed, so I'm done with the replacement lottery) is the terrible, water-wasting stop/start performance even when you manage to get it running. It's just a god-awful RV-centric solution unless you plan on having full hookups anytime you park. It's a one-trick pony: you can steam the windows indefinitely if you are running on full hookups with plenty of propane. As for being an instant source of reliable hot water, it just isn't designed for that. It's nothing like the in-home units you find underneath sinks.
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Old 02-23-2015, 01:27 PM   #7
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1972 31' Sovereign
1975 31' Excella 500
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Benton , Arkansas
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Tankless water heaters

I bought a residential unit, it has been installed for almost two years now, I couldn't be happier with it at this point.

Cost less than $500, but I think it might be difficult to make it work in the stock location without a flue through the roof.

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The fact that I am opinionated does not presuppose that I am wrong......

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Old 02-23-2015, 08:59 PM   #8
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2007 22' International CCD
Corona , California
Join Date: Jul 2013
Posts: 4,266
Have no issues using our PrecisionTemp 550 other than low water flow from a cheap water regulator (since launched into trash at high velocity) and low propane supply--mea culpa.

We rarely boondock, but it works just fine on the pump and tank in cold weather.

Dunno what the issue might be...

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Old 02-27-2015, 02:37 PM   #9
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1958 22' Caravanner
Valdosta , Georgia
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Girard tankless water heater
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Old 02-27-2015, 07:32 PM   #10
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1969 29' Ambassador
brooksville , Florida
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Posts: 1,269
I installed a garid too, the newest model comes with a thermostat dial and we had no problems with the water flow issue. I did a thread a while ago on my install.

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