In reply to your question,I do not have a fan to help circulate the warm air from the heater, thus far the heater has been doing a pretty good job so far. But now that you mention it I just might install one (I did have a little fogging on the windshield the last couple of times I went out. Any good suggestions where to pick one up? I also lowerd my heater mount on my 2320 so that I could install a chute deflector cable above the heater (I replaced the clear lexan panel with a piece of 3/16 steel and painted it JD Green, drilled a hole for my cable and reinstalled the steel filler panel. Looks like it came factory