Quote:
Originally Posted by thinkxingu
If someone had central air with an air handler in the attic and outdoor condenser, would they just have to swap the outdoor condenser with a heat pump to get heat out of the central air system?
Would that be electric efficient if the alternative was baseboard?
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Yes, this is possible. I did it long ago at a previous house. It was not as efficient as mini splits, but it had a pretty good ROI, at least compared to a new AC without the heat pump. At the time, heat pumps were not effective in cold weather, so the heat pumps heated the house on days that were in the 30s or better, and then the oil furnace kicked on below that.
I don't know how the numbers would work out today.