Frederick Corson’s 5000 square foot home in Northern California is one of the largest in the area, yet its cooling and heating costs are very low. Instead of using traditional sources of heating and cooling, Carson fitted the house with a ground-source heat pump known as a geothermal heat pump. Such a heat source is environmentally friendly and sustainable, while it also keeps the costs of heating and cooling the house minimal.
WaterFurnace International, Inc., a manufacturer of geothermal and water-source heat pumps, just launched what the company is calling the “world’s most energy-efficient heat pump,” according to a press release. The 7 Series 700A11, pictured, is the first variable capacity unit available for homeowners and boasts a 41 energy efficiency ratio and 5.3 coefficient of performance. The 7 Series exceeds Energy Star requirements and qualifies for a 30% federal tax credit, said WaterFurnace. The heating and cooling system also comes with a laundry list of other design features: integration with automation and energy monitoring systems, online remote monitoring and control, quiet performance with a lower compressor speed, advanced hot water generation, and a port for service and diagnostics that doesn’t require opening the unit. 700A11 uses a soft-start variable capacity compressor, variable speed ECM blower, and variable speed loop pump to scale output as needed.