FIRE-PLACE Russian patent published in 1995 - IPC

FIELD: fire-places with straight smoke flue. SUBSTANCE: fire-place has straight smoke flue, fire box, furnace hearth, rear wall and knuckle in smoke receiver mouth. Fire prevention platform is provided before fire hole. Fire-place is provided with main air ducts branching off in two ducts. Main air duct is brought in communication with atmosphere through wind dampening device. Each air duct is provided with vanes. One air duct is brought in communication with ash chamber and other air duct is brought in communication with air supply distributing system available in fire box. Air from ash chamber is taken for heterogeneous combustion of firewood and air from air supply distributing system is taken for supply of oxygen for combustion in natural flame. EFFECT: enhanced efficiency. 4 dwg