We used an electric fan heater in the planes when I was in
Stockholm. It was thermostat controlled and was on all the
time the plane was in the hangar (if the last person to fly
remembered to plug it in). No problems with misting up at
all.

Paul

"Jay Honeck" wrote in message
news:7MVpb.108620$e01.372593@attbi_s02...
I also leave a cube heater in the cabin w/ a t-stat cube on both
products.

Doesn't it fog up/ice up as soon as you pull the plane out of the hangar?