I am living in my new Springdale 27ft travel trailer and need advice for heating this thing. I live in an rv park and electricity is paid. When the temp gets down in the 30's, it is freezing in here! I am running 2 electric heaters (1 oil radiator type and 1 ceramic) which work IF you are standing right beside them. The rest of the trailer and the exterior walls are ice cold. Insulation must be nonexistent in this thing. I really don't want to burn my propane since electricity is paid and all. Just wondering if there is anything I can do to help heat this thing. Also wonder if they rate travel trailers on how energy efficient they are. I guess I could search for some big propane tank to tie into? :-\