Basically the reason heat is more effective than A/C is the temperature of the output.

On a hot day, you're running in 90F degree weather, the A/C is only pumping out about 30F degrees colder air.

On a cold day, you're running in 30F degree weather, the heat can probably crank out 100F degree hotter air.

This means that running heat with the top down will be three times more effective than running A/C, by my seat of the pants. Even though cold air falls, there's quite a bit of air circulation to overcome that.

 

I have my top down going in to work, yes heat on and sometimes gloves too if it's a bit nippy, and on the way home, with air on if too warm.
Hair Up Top Down
Camille

 

Hell yeah! I can't deal with the heat. I will turn the AC on and off whenever I feel the need. I will pay a few cents a mile to be comfortable.

 

I do it all the time

 

i do it.....sometimes....it just gets way to dam hot to drive with the hot air hitting your face.....its nice to have a cool breeze once in awhile even if its A/C...

 

"wasteful"...

hahaha. If you're hot, and you use the AC and it cools you, how is that a waste? If you're concerned with power then drive with the top UP. The car is faster and more efficient that way. I only drive top up when it's raining or really really late at night.

 

I hardly ever even use the AC with top up, never the less with the top down.

 

Topless climate control:

Heat - Yes
A/C - No

 

Remember, you should run the A/C for at least 10 minutes straight once a week to keep the system lubricant circulated and the seals fresh.

If you run with the top down all the time, you might HAVE to do A/C with the top down!

 

Ugh...you're right and I forgot to do that this winter...I remember hearing it though.

Byron