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Old 01-11-2018, 07:08 AM   #1
cstar5634's Avatar
Newmar Owners Club
Join Date: Sep 2011
Posts: 53
More freezing temps - Using HP when stored indoors

We live near the Alabama Gulf Coast...our 2015 Ventana is stored in non-climate controlled unit plugged into 50A service. I have never winterized in the 4 years I've owned the coach because we use it year round and sub-freezing temps are pretty rare here. We're expected to have temps from mid-20's to 32 degree's over the next several days. I have recorded temps during the last cold spell both inside the coach (49 degrees) and outside the coach (wet bay - 39 degrees). With the longer stretch of nightly freezing temps I'm wondering if I should take additional action.

Most of the threads here relate to running the AC I & II units to heat the coach. When I inquired with the ITR folks they didn't recommend that as the AC I & II is only good for 6,000 BTU's. Their recommendation was to pull our coach outside and run the diesel burner.

My question here is would there be any downside to running one of my A/C unit Heat Pumps and set it at 50 degree's while stored inside? Would also have my tank heat pads turned on. Of all the postings listed on this subject have not seen any advice about running the HP (realize that they are only good down to about 40 degree's).

Thanks in advance for reply's...

Dave & Judy
2015 Newmar Ventana 4003 - All Electric - 400 ISL
2017 Jeep Grand Cherokee
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Old 01-11-2018, 07:25 AM   #2
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Posts: 515
I live north of you, my coach is unfortunately outside. Last four years, I just use ACII with furnance mode. I set at 50 degrees, heat pads on and keep my water tank filled. Zone three runs the register inside the wet bay. I only use diesel burner in low twenties or lower when camping. Since you are inside, personally I believe you have no worries.

Terry & Kathy
2012 Dutch Star DP 4346
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Old 01-11-2018, 07:30 AM   #3
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For the typical class A, it does take several nights with 20F or below to cause any issues. And you have tank heaters which many don't have. So I don't think you need do much more than leave the tank heaters on, maybe wrap the dump valves with thermostat controlled heat tape, leave the water pump off, open the under sink cabinet doors, open all the faucets, and pour RV antifreeze (the pink stuff - windshield washer fluid works too) in all the drains.

I'd just put a couple of electric heaters in the kitchen and bathroom but not run the furnace.
'02 Winnebago Journey DL, DSDP, 36' of fun.

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Old 01-11-2018, 10:14 AM   #4
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You need to follow this thread, electric elements should take care of you in your location.
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