Equipment for the supply of combustion-free air to enclosed spaces heated by a fireplace for the heating of ambient air and air-conditioned rooms

摘要

In a device for supplying fresh combustion air for firing places, in particular heated with solid fuels, such as heating furnaces, fireplaces or the like in enclosed spaces, a fresh-air duct connected to the outside air is arranged, before its outlet into the space to be heated, in heat-transmitting contact with heating surfaces of the firing place for the purpose of heating the fresh air.