[RustyWa]

I just figured out my heating system and it works very well, even though my heat exchangers have holes in the rear part of the tin.

I didn't know that you could pull the floor lever "up" and you would just open the flappers. I was always pulling the floor lever "up and back" to it's furthest position which would open the flappers and turn on the fan.

Now it is much more comfortable in the cab. Just right.