NEW EXPANDED EDITION with color illustrations and spacious 8.5 x 8.5 format adds detailed descriptions of the components of the heat pump, open loops systems and important decisions that the homeowner must make.
Currently in the USA there is a federal 30% tax.
Interest in Residential Geothermal systems has grown as more people realize they can replace their fossil-fuel Heating system with one that is three to five times more efficient and doesn\'t require a chimney to exhaust noxious fumes.
NEW EXPANDED EDITION with color illustrations and spacious 8.5 x 8.5 format adds detailed descriptions of the components of the heat pump, open loops systems and important decisions that the homeowner must make