WaterFurnace International, Inc. is involved in manufacturing and sales of geothermal systems. The Company provides a range of residential, commercial and international geothermal products. The Company’s products include geothermal heat pumps, accessories and indoor air quality. The geothermal heat pumps include heat pumps, such as 7 Series (700A11), 5 Series (500A11), Envision Air Handler (NAH) and Envision NDW (NDW), among others. The accessories include GEOTANK, INTELLIZONE, INTELLIZONE2, ALPINEPURE, INTELLISTART, HYDROZONE and THERMOSTATS. The indoor air quality products include AlpinePure HEPA, AlpinePure HRV/ERV, AlpinePure Filters and AlpinePure Pan Treatment. The Company provides designing and installing of a geothermal or water-source heat-pump system for a commercial, industrial or institutional facility. Its Global Sales distributes products to countries all over the world.