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Old 09-20-2021, 08:34 AM   #1
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Join Date: May 2020
Location: Sandy, Utah
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Tank heaters

tank heaters
Have a 2019 2104s MiniLite. Have exclusively boondocked for last couple of years but want to go to Yellowstone first week in OCT. Know very possible could get pretty cold. Wondering if anyone can give me guidance on how much to trust water tank heater and to what type of low temperatures would be safe. Will have hook up but worried about water lines beyond tanks freezing.

Also - guess I could exceed 30 amp capacity if running space heater in trailer and tank heaters??

Any thoughts welcome - and please excuse if not using all the right terminology.

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Old 09-20-2021, 12:56 PM   #2
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The tank heaters won't heat the water lines, which are what you need to worry about. The tanks generally have enough room for expansion while the lines don't.
Dan-Retired California Firefighter/EMT
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and Zoe the Wonder Dog(R.I.P.)
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Old 09-21-2021, 08:31 AM   #3
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The best way I have found to ensure the water lines stay free of ice is to run the rigs furnace not space heaters and to leave the cabinets at floor level with the doors cracked open a couple of inches. The furnace will also warm the underbelly of the rig.
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Old 09-21-2021, 09:20 AM   #4
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Thanks. Probably best not to rely on not winterizing if extended periods below freezing expected.
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heater, tank

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