+1 to gp Reading the original post, I knew immediately that you were not familiar with what’s going on in the southwest, or Arizona at least. We’ve been doing

+1 to gp Reading the original post, I knew immediately that you were not familiar with what’s going on in the southwest, or Arizona at least. We’ve been doing heat pumps for a long time out here. Most people talk about them like they’re AC but as far as I am aware they’re all heat pumps because it does get chilly overnight in deserts in the winter.