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11-28-2022, 01:04 PM
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#1
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Junior Member
Join Date: Jul 2022
Posts: 27
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Semi-Winterization
My neighbor has a 2003 bus RV that he bought new that he has never once winterized. He keeps an electric heater in the basement and one inside. I would like to do the same thing. I have a 2020 A Class. His has the old tank type water heater. Mine has the tankless, and it seems to me that the copper tubings visible just inside the louvered outside door would be vulnerable to freezing. Would I just close the water heater bypass valve and open and drain that small tank just inside the door, and would that be sufficient protection?
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11-28-2022, 03:38 PM
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#2
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Moderator Emeritus
Join Date: Jan 2000
Location: West Palm Beach, FL. USA
Posts: 27,671
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What brand of heater and what does its manual say about freeze protection?
__________________
Gary Brinck
Former owner of 2004 American Tradition and several other RVs
Home is West Palm Beach, FL
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11-28-2022, 03:46 PM
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#3
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Senior Member
Join Date: May 2005
Posts: 685
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Seriously, what is the downside of Winterizing your coach and walking away from it?
__________________
04 Southwind 37C W22
DIY Rear Panhard Rod
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11-28-2022, 03:58 PM
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#4
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Junior Member
Join Date: Jul 2022
Posts: 27
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Quote:
Originally Posted by exrench
Seriously, what is the downside of Winterizing your coach and walking away from it?
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That’s hardly an answer to my question lol but if you insist. It’s the most time consuming RV to winterize that I’ve ever owned, and I use it frequently in winter months, I don’t walk away from it….
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11-28-2022, 04:03 PM
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#5
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Junior Member
Join Date: Jul 2022
Posts: 27
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I am going to put a piece of 2” r-board (R=10) over the exterior door and I’ll leave the washer/dryer doors open as that closet is exposed to the WH…..
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11-28-2022, 04:07 PM
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#6
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Junior Member
Join Date: Jul 2022
Posts: 27
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Quote:
Originally Posted by Gary RVRoamer
What brand of heater and what does its manual say about freeze protection?
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AquaGo and it gives the generic instructions for winterizing a tankless which includes turning the bypass valve and opening that little tank inside and draining it out. I just don’t know if that drains the whole copper manifold, or just the little tank you open up….
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11-28-2022, 07:03 PM
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#7
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Senior Member
Tiffin Owners Club Texas Boomers Club
Join Date: Feb 2018
Location: North Texas
Posts: 2,121
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We have a 2014 Allegro Bus 37AP stored outside in North Texas. I didn't winterize it last year, but it was plugged in. The AquaHot was set at 50°, with only the electric on. I also boxed in the underside of the wet bay with foam board.
I've found when the highs are 25° or lower it needs the diesel burner. Last year, I probably ran the diesel burner 3 days, in total.
I did find the prior year, when we had our multi-day power outage with sub-zero temps, that PEX can handle freezing. I had someone living in it, and I didn't have the AGS set right, so the heat was off way too long. I wasn't trying to test it. And I know the failure points then become the pump & fittings. But it did unthaw fine.
Sent from my SM-G973U using iRV2 - RV Forum mobile app
__________________
2014 Tiffin Allegro Bus 37AP
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11-28-2022, 07:23 PM
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#8
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Senior Member
Join Date: Sep 2021
Posts: 1,868
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Quote:
Originally Posted by Montecresto
That’s hardly an answer to my question lol but if you insist. It’s the most time consuming RV to winterize that I’ve ever owned, and I use it frequently in winter months, I don’t walk away from it….
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Actually, it is a perfectly reasonable question if you want help. In general, if you don't want to winterize then you have to pay the cost to heat the coach and water system all the time.
__________________
2004 Safari Cheetah PDQ 330 Cat
2020 Ram EcoDiesel toad
USAF SERE
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11-29-2022, 05:47 AM
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#9
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Junior Member
Join Date: Jul 2022
Posts: 27
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Quote:
Originally Posted by DRM901
We have a 2014 Allegro Bus 37AP stored outside in North Texas. I didn't winterize it last year, but it was plugged in. The AquaHot was set at 50°, with only the electric on. I also boxed in the underside of the wet bay with foam board.
I've found when the highs are 25° or lower it needs the diesel burner. Last year, I probably ran the diesel burner 3 days, in total.
I did find the prior year, when we had our multi-day power outage with sub-zero temps, that PEX can handle freezing. I had someone living in it, and I didn't have the AGS set right, so the heat was off way too long. I wasn't trying to test it. And I know the failure points then become the pump & fittings. But it did unthaw fine.
Sent from my SM-G973U using iRV2 - RV Forum mobile app
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I don’t have the diesel burner. But I am of course plugged in and I have a small electric heater in the wet bay of the basement and a large electric heater up inside the coach, with appropriate cabinet doors open. I’m satisfied that everything is properly protected that way. I’m just uncertain about the tankless water heater and am hoping someone comes along with a knowledge and information about that….
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11-29-2022, 05:50 AM
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#10
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Junior Member
Join Date: Jul 2022
Posts: 27
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Quote:
Originally Posted by Iceclimber
Actually, it is a perfectly reasonable question if you want help.
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I would like help with the specific question I asked about the tankless water heater….
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11-29-2022, 09:34 AM
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#11
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Junior Member
Join Date: Jul 2022
Posts: 27
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Ok, so I finally found a YouTube video with instructions for the water heater in winter. Sense RV antifreeze cannot be used in a tankless water heater it gets isolated from the system by the bypass valve in the wet bay and drained at the exterior door panel. Problem solved….
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