Daikin Altherma supplies heating, cooling, and domestic hot water three to five times more efficiently than conventional systems using oil or gas, says the company. The all-in-one inverter variable speed heat pump transforms un-utilized energy from the outside air into usable heat. Daikin Altherma can be connected to low temperature radiators, fan coil units, radiant heating systems, and solar thermal technology for hot water production. Try this flexible alternative in new and retrofit applications.