I was reminded of this thread during the cold nights on the mountain this weekend when I found myself not wanting to sit up to turn on the heater. By the second day we had also learned to drive down from the ski lodge to the RV parking lot in the evening and turn on the heater, and then read for 15 minutes in the warm car while the trailer warmed up.
Since I'm not ready to drill all those holes for eyebolts in my cabin yet (see Craig's drawing) I realized that what we need is an iPod/Pad Heater App. There's an app that repels mosquitos (no joke, and we camped with people that were using it and said it works), so why can't we have a Camp-Inn Heater App that lets you prestart your heater from the comfort of the warm lodge using your iPhone?