Device for transferring heat energy from a fireplace to a fluid heating system

Abstract From the Canadian patent

Inventor: Joseph T. Zung ABSTRACT OF THE DISCLOSURE, A circulation-fluid building heating system such, as a forced air system, is positioned in heat transfer relationship to fireplace chamber-defining walls which sealingly separate the fireplace chamber from the fluid circulation conduit. The fireplace chamber-defining walls have an upper portion which defines wall means which are horizontally extensive and thermally conductive. Accordingly rising hot gases from a fire in the fireplace chamber impinge the horizontally extensive wall means, for heat exchange with fluid in the circulation conduit. Additionally solid, transparent, openable and closable doors separate in closed, position, the …