I have a solution for the problem of the electric garage door opening and letting all the heated (or cooled) air out. I have a little pre-measured marker on the side of the door. Depending what car is leaving the Sanctuary, I only have to lift the door that exact amount.
I am not goofy enough to use this method all the time but when the A/C or heat is on I just crack open the door and slip a car out. It is measured to the inch. My wife can't stand it when I slip out of the "bat cave"! She thinks she is going to get her head cut off.
