irwin
Veteran Member
I had a Curtis cab on a B2910 I had and the cab was drafty and I was thankful for that.
The heater would drive you out of the cab even if you had it on low, I had to leave the fan off to be able to wear a jacket in the cab.
Even with the fan off it radiated more than enough heat passively to keep the windows clear.
Are you sure it is working as it should.
I have seen others here say it is too hot for them also.
Ditto.. I usually leave the back cover off mine. If the weather gets too cold I'll put it on, but still will want some outside air getting inside.. A tractor with a cab is a small area to heat, and my heater makes it toasty warm.