I've had an external heater heating the inside of my car and the engine for 2 hours. Then I start the car with AC set to 22C and instantly I'm blasted with -20C air from the outside.
Why?
The Toyota Prius was the first car I owned that actually waited for the air to be the correct temperature before opening the ducts. The same worked in the summer, if the car was already cooler than the outside air, it wouldn't do anything until the AC had enough time to cool.
I've had an external heater heating the inside of my car and the engine for 2 hours. Then I start the car with AC set to 22C and instantly I'm blasted with -20C air from the outside.
Why?
The Toyota Prius was the first car I owned that actually waited for the air to be the correct temperature before opening the ducts. The same worked in the summer, if the car was already cooler than the outside air, it wouldn't do anything until the AC had enough time to cool.