If you live south of San Francisco you don't need a heater, and north of LA you don't need a AC. When I lived in Santa Barbara I didn't have AC or heating. And

If you live south of San Francisco you don't need a heater, and north of LA you don't need a AC. When I lived in Santa Barbara I didn't have AC or heating. And it was lovely. In Atlanta we all need heat pumps (which are efficient) for both AC and heating. See what that'll do to your e-bill.