Abstract

The invention belongs to the field of heating appliances. The housing of the unit (1) is double-walled with a hinged lid (2) containing two parallel convex air-preheating channels (3). The channels (3) are connected to the air supply- preheating channel (5), which is installed between the walls of the housing (1). External air is supplied to the channel (5) through an air supply tube (4) connected to the housing (1). A double perforated core is installed inside the housing. Between the housing (1) and the external core (7) there is a hot air distribution-supply channel (8), which distributes and supplies hot air into the combustible gas mixture formation and combustion channel (9) between the external (7) and the internal cores (6).

IPC Classes  ?

• F23B 10/02 - Combustion apparatus characterised by the combination of two or more combustion chambers including separate secondary combustion chambers
• F23B 80/04 - Combustion apparatus characterised by means creating a distinct flow path for flue gases or for non-combusted gases given off by the fuel by means for guiding the flow of flue gases, e.g. baffles
• F23L 9/02 - Passages or apertures for delivering secondary air for completing combustion of fuel by discharging the air above the fire
• F23L 15/00 - Heating of air supplied for combustion

Abstract

The invention belongs to heating appliances. To keep heat, a stainless steel reflection partition wall (7) is installed in the fuel-stocking shaft, the first combustion chamber (6). Over the ash box (8) there is an air preheating tube (11) connected to the combustible gas velocity accelerator (12). A universal gas combustion unit (14) for formation and combustion of the combustible gas mixture at high temperatures is installed in the second double-wall combustion chamber (13). The installed forced draft fan (5) is designed to control the air intake and thus to achieve optimal formation of the combustible gas mixture and its effective combustion in the universal gas combustion channel (20). Metal plates fixed to the heat exchanger (21) provide for total heat transfer. The operation of the boiler is automated.

IPC Classes  ?

• F23B 10/00 - Combustion apparatus characterised by the combination of two or more combustion chambers
• F23B 10/02 - Combustion apparatus characterised by the combination of two or more combustion chambers including separate secondary combustion chambers