According to Energy Star, geothermal heat pumps (GHPs) are among the most efficient and comfortable heating and cooling technologies currently available because they use the earth’s natural heat to provide heating, cooling, and, often, water heating. And manufacturers keep pushing the efficiency envelope, introducing products that feature super high EERs and sophisticated control systems that are designed to keep homeowners supremely comfortable as well as make installation and service a little easier for contractors.
Bosch Thermotechnology’s Greensource™ CDi Series Model SM geothermal heat pump is designed to cool and heat a home economically and in an environmentally friendly manner. This model is available in cooling capacities ranging from 2-6 tons and features a part-load EER of up to 37 and a full-load EER of up to 28 (ground water). Other features include a tin-plated evaporator coil for long life; a floating base pan and variable-speed motor for quiet operation down to 52 dB; an air-tight cabinet with less than 2 percent air leakage; closed cell fiber-free insulation for improved air quality and energy-savings; multi-position airflow flexibility; and a 10-year parts-and-labor limited warranty.