Idling an engine
Ok all; I am not a mechanic, and I didn't stay at any hotel/motel last night. After reading a post in "Begining RVing" concerning oil change and idling, most of the people said that idling for more...
Forum Discussion
D.E.Bishop wrote: "As far a Chum Lee's suggestion, from what I have been able to figure out it is the Cold Dry air from the AC which comes on automatically when the heater controls are turned to Defrost, not the warm air from the heater. That may be wrong, if it is someone explain why the defroster works the way it does."
Well yes and no. In defrost mode, most modern AC systems for vehicles send air through the evaporator core (compressor on) and then on to the heater core before it comes out the defroster vents. That way you get a double whammy effect. When ambient air goes through the evaporator it dehumidifies (drys) the air, then when it goes through the heater box it heats up the dry air. Thats the perfect recipe for defrosting the windows especially in humid environments. Often, but not always, you, the driver, have some control of the heat function.
Chum lee
Well yes and no. In defrost mode, most modern AC systems for vehicles send air through the evaporator core (compressor on) and then on to the heater core before it comes out the defroster vents. That way you get a double whammy effect. When ambient air goes through the evaporator it dehumidifies (drys) the air, then when it goes through the heater box it heats up the dry air. Thats the perfect recipe for defrosting the windows especially in humid environments. Often, but not always, you, the driver, have some control of the heat function.
Chum lee
