After market cab heater
TommyG, these heaters are real good, mounted in the cab, they can create much more useable heat than the military fender mounted models in cold weather. I use the 5000 model 24 volt, pay $147 0r so, install, build some reducers to mount the defroster ducts up to the winshield and drive toasty all day plowing snow with the old M35A1 wing plow. If you feel the need, order the next bigger one. And, they happen to be made in your home town, so you might be helping some of your friends with your purchase. You are right, the military heaters have gotten too expensive, but it is supply and demand, and right now there isn't any supply. JT out