Are you building a new house and trying to solve heating costs? Use the cheapest source of energy - wood. NORSK KLEBER talc accumulation stove can generate heat for 12 hours. The stove, is charged with heat from the fire and then releases it into the room for many hours. Just put on the fire in the morning and you can work all day, before you add fuel for the second time. The stove will still be warm when you return.