> Edit: don't forget that AC is much more efficient than heating. With AC you are looking to change the temperature by at most 35 degrees and you are moving heat, so you are getting a multiplier there. With heating, you are heating from freezing or below for most places.
Its also incredibly efficient if you're using a geothermal system to pull cold out of the ground vs pushing heat into existing hot air with a compressor.
Its also incredibly efficient if you're using a geothermal system to pull cold out of the ground vs pushing heat into existing hot air with a compressor.