[oil pan 4]

Originally Posted by Cobb

So, you are going to leave a portable ac unit in your driveway like the speaker to an out door movie and when you park your car you put the vent inside? Then with a timer you have it switch on x amount of time before you drive to work to precool your car?

Cant leave it out side, some crack head will steal it and plus the cheaper ones are indoor only. At least the cheaper ones are indoor units, the industrial ones seem to be indoor/outdoor and harrsh industrial condition friendly.
If I were going to do it I would put the unit in the house or in the garage and run the cool air out through a vent. That way the A/C can be used inside too, as a heat pump, pumping heat in or out of the house.
When we move to a house with centeral A/C the portable A/C we now use is going to be repurposed for something like this. Our portable A/C is one of the cheaper ones, it has the hot air discharge ducting, but has a register on the top to let the cool air into the house. Some tape, hole saw and clothes dryer duct flange can remedy the lack of ducting on the cool side.