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Old 02-16-2015, 09:34 AM   #1
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Convert water heater to On-demand

I have an 11' 390BH. Has anyone converted their water heater to an insta-hot, on demand type?

Looking for how-to or advice.

Thanks,
Matt
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Old 02-16-2015, 09:39 AM   #2
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My 2011 had on demand. Why are you wanting to switch it. There are several products out there none are perfect.
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Old 02-16-2015, 09:49 AM   #3
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Our water heater quit working. And we like to take showers for longer than four minutes
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Old 02-16-2015, 10:12 AM   #4
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Convert water heater to On-demand

A couple of thoughts. The Garrard is what most of the Berkshires come with. They are coming out with a Gen 3 that promises temperature control. Atwood also makes one and I know Mike and Sylvia put one in their MH maybe they will chime in. I saw a new product at the Tampa RV show but I can't find the literature I picked up. It looked very promising and offered full temp control. The problem with that system is the covers don't match. And they are white plastic. At any rate if you change the WH to a inline system you will have the added expense of a new cover and getting it painted. I wonder if you have room for a ten gallon system. I have heard that if you run them with both heat sources running it works almost like an in line system. If I find the name of the new system I will get it to you.
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Old 02-16-2015, 10:51 AM   #5
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thanks PHil

Thanks for the info!! Maybe we will try for a 10 gallon system, or a second 5 gallon holding tank. We dont want to have the grill painting, match problems.

Thank you.
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Old 02-16-2015, 11:02 AM   #6
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Originally Posted by mrcerretti View Post
Thanks for the info!! Maybe we will try for a 10 gallon system, or a second 5 gallon holding tank. We dont want to have the grill painting, match problems.

Thank you.
I would just add a pressure holding tank like you use for wells. It would also cut down on either the electrical used which really doesn't matter but propane would.
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Old 02-16-2015, 11:26 AM   #7
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They make on tank-less heaters that are the same size as the tanked heaters and the existing panel will fit.
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Old 02-16-2015, 12:21 PM   #8
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They make on tank-less heaters that are the same size as the tanked heaters and the existing panel will fit.

You will at least need to cut a hole in the existing panel. Click image for larger version

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Old 02-16-2015, 12:51 PM   #9
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Suburban make a 16 gal water heater that used the same door and the 10 gal. it is 6.5" deeper.
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Old 02-16-2015, 01:43 PM   #10
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Precision Temp makes one that fits in the same space as a 10 gal. Had it for 3 years without a bit of trouble. I little expensive but quality and easy to install.
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