http://www.trailmanorowners.com/foru...t=cold+weather
http://www.trailmanorowners.com/foru...t=cold+weather
http://www.trailmanorowners.com/foru...t=cold+weather
The above links provide some previous discussions on this topic. One thing I didn't see listed in my posts was that made a BIG difference was putting lengths of pipe wrap in the channels along the sides of the beds (from outside, simply push them up into the gap along the 2 sides of the bed(s). On the front bed they would go undert the fold down flaps that you push down. One it cuts down on drafts but the biggest benefit I found was the reduction of condensation that will occur on those flaps. It soaks right into the bed linens! Not a real comfortable feeling. We do use an electric blanket also.
As noted in the above links, we have been out in 18F weather. Using 2 electric cube heaters, one in the back bed and one up front, the propane heater only cycled once. Other than that the temp stayed 65F or better (which was comfortable with the electric blanket.
The Amphib base has it's own propane filling facility on base about 3/4 mile from the campground. We store our TM on base in one of the RV/Boat storage lots.
We do have a "winter" water hose that we wrapped pipe wrap around but the other suggestions above will work as well.
Insulated covers for your sky lights (held up in place with velcro) will also help keep you from losing heat from your TM.
Finally, let me also thank you for your service. I retired from the reserves last October. We brought our TM in September and have replaced my monthly drill with a monthly camping trip (as a minimum, there are some months we were out for every weekend somewhere!)
Bill