Edwin Pawlowski

"BETA-32" <BETA-32@betabcghfd.cbd> wrote in message 0
> degrees, I can immediately feel that the incoming air is being preheated.
> I think it does that because, if the outside air is say 55 degrees, and it
> thinks I want 63 degrees inside the vehicle, it naturally starts to
> preheat the outside air to help bring the inside vehicle temperature up.
> But, by selecting "Lo", it is not governed by any specific temperature
> setting, so it COMPLETELY turns off the preheating of the air that is
> coming in. It seems to work in the same way that a manual heater system
> does when moving the temperature setting "off".
>

That makes sense. It would be interesting to see what the actual
temperatures are and if it does rise anyway on the path through the ducts.
Even on cars with no automatic AC, or even no AC, it always seems to have a
noticeable gain.