If you have AC and you are running it along with the heater it will suck the moisture out of the air. If the AC shuts off for some reason (maybe due to low pressure from the cold or high pressure from the heater?)it will instanly fog your windows.

Mike


'94, and '00 Amigos and '00, 01 Rodeos. Rodeo springs and aftermarket 'hard top on 94. Aisin hubs OME 919's on the 2000 Amigo. 2000 and 2001 Rodeos have OME 912's and Aisin. Smoother ride with the OME 919's???