- Sep 17, 2007
I have a steel 24x32 ft building, (768 sq ft.), with 2 inch spray foam on the walls and 3 inch on the ceiling, (10ft high ceiling), and was thinking of getting a heat pump to keep it above 50F. I have a wood stove but don't always want to deal with starting and tending a fire if I'm just going to work in it for a few hours, and if I don't use it for a few days I don't want the building to get cold soaked. I'm in central NY state. Since I'm not looking to heat up to 70 F most of the time I'm wondering if I can downsize the units I'm looking at, and what my electricity cost might run, or is it better to go bigger to deal with a few really cold days. We mostly see 20-35F but get a few days in the teens and near 0F. Also how the SEER rating would affect my costs. I've looked at some Daikin units that are on sale, I guess they are older units since the SEER rating seems to be lower. Cooling is not a concern as I have good shade in the summer and with the doors closed it's never gotten above 72F.