Does using the heater or AC in your vehicle use more gas?

Answer 1

The heater simply channels the heat created by your car's engine into your car, thus utilizing no gas. On the other hand, the A/C forces the car's engine to turn a small air compressor which creates so much pressure that it turns your car's "refrigerant" gas to a liquid. That's quite a lot of work. So in other words, the heating uses none but the ac uses a decent bit, not much though if u use it only occasionally.

Answer 2

This often comes as a surprise to many people, but cars designed in the past 15 years or so are more efficient with the A/C running and the windows rolled up. If you turn off the A/C and roll the windows down, the aerodynamics of the car change and produce more drag. This uses more fuel than what's required to power the A/C compressor!

The heater uses no additional power.

Answer 3

Only in using the AC because you have to engage a compressor to run the AC. The AC has a seperate V belt just for that.

Answer 4

using the ac will but the heater will not use any gas.

Answer 5

Heater: No. Captures heat coming from engine anyway.
A/C: Yes. Definitely.

Answer 6

yes, I know this for sure, but you should ask a makanic for the type of car u have andfor more info. but if u use it to much,especially AC on a hot hot day +ur on a hill ur engine can catch fire, or leaking or even WORSE! so anyway, i think im pretty positive about my answer! bye!!!!!!!

Answer 7

I could be wrong but I think only running the air conditioner uses gas.