HEATING BOILER OPERATING ON FIREWOOD Russian patent published in 2013 - IPC F24H1/00 

FIELD: heating.

SUBSTANCE: in a heating boiler operating on firewood comprising a casing with at least one door, nozzles of water supply and drain and a stack. Upper, lower, rear and side walls of the casing and also stack walls are made as hollow. Inner cavities of the above walls are made as capable of communication both between each other and with nozzles of water supply and drain. The casing is divided with horizontal hollow partitions into furnaces, besides, partitions along the length are made as shorter than the casing length and are fixed to the front or rear part of the casing in staggered order. Cavities of partitions communicate with cavities in the casing walls. The boiler comprises ventilation pipes, horizontally fixed to the body, designed to supply air into the zone of burning start in each furnace. The boiler casing may be divided into furnaces by two horizontal hollow partitions. Horizontal hollow partitions may be fixed to front or rear part of the casing in staggered order. The stack may be arranged in the front part of the casing. The casing may be divided into at least two furnaces. A heat exchanger may be installed on the stack. Ventilation pipes may be equipped with limiters from reinforcement wire. Ventilation pipes may be equipped with gates installed on the casing. The boiler casing may be made of metal.

EFFECT: reduced fuel consumption and higher efficiency.

9 cl, 4 dwg