DIYbanter - View Single Post

(v) wrote:

Heat pumps work fine in mild climates like VA or further south. In
New England they don't work out that well, too much time with the
backup on.

Actually, there is a new version of heat pump that works quite well in very cold
climates. I was able to look at one installed in North Dakota last summer.

The traditional air vented pumps do not. The newer geothermal heatpumps use
multiple wells with a closed circulating coolant running 100-200 feet
underground. The temps there are around 55 degrees year round, which is optimum
for a heat pump in summer or winter.

Don't know how the capital (installation) costs compare though...