The AHRI (Air-Conditioning, Heating, and Refrigeration Institute) has reported increases in electric sales for HVAC over 20% in the same time period this past year. These HVAC statistics are very encouraging in this tight economy. However closed in pumps are going through a bump since they are regarded as respected eco-friendly-heating technologies. Warmth pumps, especially geothermal power energy warmth pumps, tend to be efficient than about almost every other commercial heating technology
Environmentally Friendly HVAC, Is it Possible?