Thanks for all the responses. I'm aware of all the points above. As Haggis said, this eliminates most every location in the northeast. I was hoping for a magic bullet I wasn't aware of. One idea I've had when camping in a campground with electricity is to run an electric heater. Anyone tried this?
Have you looked at a Propex heater? Does not “shit where it eats” (exhaust) and could easily be configured to heat a Shiftpod with NONE of the negative side effects. Clean, dry, warm air