Same here. I run the ac and heat together and have the fresh air vent open. Never had a fogging issue.Turn the AC on,dries the air+open a window.Been plowing with my cabbed Kubota for ten years and no problem.
How about fresh air / recirc air? Tried playin with those?ya we tried that. Didn’t work
Yep. Thats why I asked if it pressurized?mine also has a lever for switching air flow from exterior air for makeup to recirc air. i find it frosts the glass alot more if its on recirc
Or breathing. Need to stop breaking & pumping out warm humid air.One thing;the cabs are pretty well sealed and in winter we drag in some snow on our boots;so there is bound to be a lot of moisture in the air.As stated turn on the air and open a window for a while.