A Ground Source Energy pump produces very little noise.
Ground Source Energy is the most energy efficient, environmentally clean, and cost-effective space conditioning system available, according to the US Environmental Protection Agency.
Today there are now more than 1,000,000 Ground Source Energy installations in the United States. The current use of geothermal heat pump technology has resulted in the following emissions reductions:
Elimination of more than 5.8 million metric tons of CO2 annually
Elimination of more than 1.6 million metric tons of carbon equivalent annually
Geothermal heat pumps are efficient. The use of Ground Source Energy lowers electricity demand by approximately 1 kW per ton of capacity.