Lots of good points here. In my first TT back in the mid 80's I was living out of it when winter set in. We had a cold streak come in and it got down to 0F at one time. I had wrapped the water hose with a heat tape and insulation. I let the heater run at night time with a supplemental heater. During the day I just let it run enough to keep the RV liveable when I got in. Drained the tanks when required and closed them back off. Don't know if I was lucky or not but had no problems (once I installed the heater tape/insulation on the water hose) with the EXCEPTION of waking up one night freezing to death. The heater had stopped and I finally found that my propane tank had frozen! Had never heard of it. I ended up with heater tapes on both of them to keep that from happening. I don't know if it was just a strange happening or what, and putting a heater tape on a propane tank seemed probably dangerous,but it did let me get through the cold weather and the accompanying foot of snow.
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