PILOON
Super Star Member
Here's a picture that shoes what it looks like mounted in the tractor.
Yep, that is where I mounted mine as well in yy Mitsu.
I used a school bus 'rear under seat' unit from scrapped bus.
Carter was the manufacturer and the unit is 6" X 6" and rated (I think) at about 30,000 btu's.
And as you, I wanted the heat to blow down as the lower cab is where most cold leakage comes from.
Besides, when my feet are warm I am a happy camper. (er tractor driver)