I found this cab heater in one of my catalogs and thought it might work well
for those of you who live and camp in a colder climate.  It's made by
Zerostart, puts out 17,500 BTU, and draws from 1.9 to 3.9 amps.  Pretty
small to, ~8" cube.

http://www.oldwinterman.com/t17155.html

Perhaps someone out there has used one.  Any feedback?

Cheers,

Jeff