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The Roman heating system was called a hypocaust. How did Romans heat their homes?Rich Romans liked to be warm and cosy. They had central heating at home, in villas and in public baths. The heating system was kept going by slaves, who kept a fire blazing in a furnace to heat warm air. The warm air moved around the building through spaces under the floors and between the walls.
It pulls cold air from the house and passes it around a heated metal box called a heat exchanger. 2. The heat exchanger transfers heat from the metal to the air. 3. A blower fan pushes the heated air through ducts that distribute it throughout the house. The furnace that came with the house is almost 30 years old, and its heat exchanger is cracked; plus, itâs only about 60% efficient. So there was really no question about replacing it. Check out this great article on HouseLogic if youâre trying to decide whether to replace or repair your furnace.