Duct heating

The canal heating is a heating technique that was previously mainly used in orangeries , similar to the hypocaust heating .

The substructure of the orangeries usually consisted of sand or tamped clay, with a layer of clay or stone slabs as the actual floor above. These types of soil were chosen so that irrigation and condensation water can be easily drained away and thus prevent the formation of waterlogging. Because of this, old orangeries suffered from cold feet. Attempts were made to overcome this disadvantage with better stoves, and duct heating then developed as the best solution.

Channels (channel-like furrows) were dug into the clay or sandy soil , covered with clay bricks and then sealed with materials such as loam, clay, manure or asphalt. With the central flue gas duct, the wolf , coming directly from the furnace, the hot flue gases from the furnace were distributed into these ducts located below the floor. The other ends united to form the central exhaust duct, the fox , which opened into the chimney or chimneys .

Web links

• Description on steffenreichel.homepage.t-online.de, accessed on November 27, 2010