This inocuous photo shows the gravel sub-grade of our restoration. What you do not see are the buried ducts and supply lines that will provide heating and cooling from one air-to-water heat pump unit called Altherma by a Belgium company, Daikin. A heat pump uses the thermal energy in the outside air, compresses it as a gas which raises the temperature, then feeds it through a condenser which releases the heat back into the interior of the house.
Powered by electricity there is no gas or oil involved, and thus no venting of exhaust fumes. The heat produced can be used for radiant heating, fan-coil heating, and hot water production as well. An option will also provide cooling if desired. For a more detailed description go to: www.daikinaltherma.eu