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01-17-2024, 08:37 AM
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#1
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Montana Fan
Join Date: Aug 2023
Location: Antwerp or Corbin
Posts: 176
M.O.C. #33140
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How Cold is Too Cold?
I went outside today and noticed my anti-freeze was a little cold:
https://www.youtube.com/shorts/m7ygAnSVBd4
Is this a problem? I didn't think it could freeze until it was -50 or something.
What is the coldest you would consider staying in the RV? Have you put skirting up and does that help?
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01-17-2024, 08:39 AM
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#2
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Montana Fan
Join Date: Sep 2023
Location: Jacksonville
Posts: 251
M.O.C. #33285
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I have skirting on mine. As for how cold while if the furnace doesn’t keep it comfortably then it’s to cold.
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Bob, Kay and our 3 pups Lily, Willis and Gizmo
Jacksonville, Nc
Retired LEO of 35 years enjoying life camping n fishing
2021 Montana 3761fl pulled with a 2022 F350 King Ranch
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01-17-2024, 12:38 PM
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#3
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Montana Master
Join Date: Oct 2018
Location: Anderson
Posts: 2,787
M.O.C. #22835
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We have stayed in our camper "down" to zero degrees (F). But, it had no water in it. It was winterized. We used a port-a-potty and water from containers, and nothing down the sinks or shower.
With water in the tanks, using the toilet and shower, we've been successful to 10 degrees (F).
No, we do not have skirting. It got down to 15 (F) just this last night and the tanks and plumbing did just fine. Of course, we've run through a lot of propane too.
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History is not about the past, it's an explanation of the present.
2019 Montana High Country 375FL
2014 Chevy Silverado Duramax, 6.6L Dually
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01-31-2024, 01:22 PM
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#4
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Montana Fan
Join Date: Aug 2020
Location: Missoula
Posts: 139
M.O.C. #26938
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We were caught in a winter storm a couple years ago. Temperature at night was down to -3 F. We had water in fresh water and had no issues with pipes freezing using the fresh water tank. Furnace kept the 5er comfortable. We also traveled, but left the furnace set at 55 F while on the road. Nothing froze.
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Jack & Tanya Wenger
Missoula, MT
2006 Montana 2980RL
2004 Chev 2500 HD
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01-31-2024, 03:06 PM
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#5
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Montana Master
Join Date: Feb 2020
Location: Bencia
Posts: 539
M.O.C. #25828
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I camped for two winters in South Lake Tahoe, CA from mid October to April. Temperatres were as low as 5 F. Used supplemental oil bath heater and the park restrooms and fabricated my own heat-traced and insulated water hose.
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2020 Montana 3780RL fifth wheel
2016 F-350 6.7L Diesel Crew Cab Long Bed DRW
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01-31-2024, 05:28 PM
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#6
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Established Member
Join Date: Nov 2018
Location: OKC
Posts: 31
M.O.C. #22977
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We just spent 3 nights just north of Huntsville AL and temps were down below 8f 2 of the nights. Kept furnace on at 65f and dripped kitchen and bathroom sinks with grey tank open.and tank heaters on. No problems.
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01-31-2024, 06:03 PM
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#7
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,361
M.O.C. #6433
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Depends on how well prepared you are. We used to have at least one active member who was full timing in Alaska.
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Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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01-31-2024, 10:35 PM
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#8
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Montana Master
Join Date: May 2016
Location: Cuyahoga Falls
Posts: 721
M.O.C. #18572
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Quote:
Originally Posted by brycesteiner
What is the coldest you would consider staying in the RV?
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50 degrees
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02-03-2024, 08:35 AM
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#9
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Montana Master
Join Date: May 2006
Location:
Posts: 1,733
M.O.C. #5751
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When really cold, the A/F does not stay as a liquid, it turns to slush....but still protects your lines/equipment.
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02-03-2024, 08:46 AM
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#10
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Montana Master
Join Date: Mar 2021
Location: Western NY
Posts: 548
M.O.C. #28430
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-50 antifreeze starts to slush somewhere around 10 degrees. Unlike water, it doesn’t expand or has an extremely low expansion rate when freezing and won’t expand enough to do damage until it’s rated freeze point. I have had -50 antifreeze in my boats systems at -15F and no problems even though the leftover jug in my shed was pretty much solid.
The coldest our Montana has been while winterized was -5F. While using it, 15F.
__________________
Mark & Karen
2021 3121rl - slide toppers, cottage white, X-Factors, disc brakes, Gen-Y pinbox
2021 F-350, 6.7L, SRW CC LB - B&W Companion, Bakflip cover
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02-03-2024, 08:33 PM
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#11
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Montana Fan
Join Date: Aug 2023
Location: Antwerp or Corbin
Posts: 176
M.O.C. #33140
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i kind of figured that. I noticed they did not expand like my frozen gallons of water.
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02-04-2024, 03:52 AM
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#12
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Montana Master
Join Date: Oct 2019
Location: Jacksonville
Posts: 2,237
M.O.C. #25165
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I stay in our rig about 3 week every year at or below zero. Hunting season in the mountains can get as low as -5 to -10 degrees. I do use the water in the tank for showers and toilet. Also run the furnace as needed and supplement with electric heat inside.
I have never skirted our rig as we do not stay in one place long enough to justify it. I have thought about that inflatable system I've seen that is custom fit to your rig, but last I checked it was very expensive, over $5,000.00 for a bunch of inflatable tubes.
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Robert & Diana McNeal
2019 Montana Legacy 3791RD 20th Anniversary Edition
2014 F350 4x4 6.7L SRW
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02-04-2024, 02:30 PM
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#13
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Montana Fan
Join Date: Jan 2020
Location: Southoftheboarder :)
Posts: 115
M.O.C. #25725
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I second the 50 degree answer.
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02-04-2024, 05:31 PM
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#14
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Montana Fan
Join Date: Aug 2023
Location: Antwerp or Corbin
Posts: 176
M.O.C. #33140
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Maybe bales of straw would work and they are portable.
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