WOOD FUEL HEATING APPARATUS AND COMBUSTION PROCESS

摘要

The present invention employs a new and improved combustion chamber and combustion process which provides for gasification of the wood fuel, turbulent mixing of the volatile gas with air and combustion of the gas at a relatively high temperature and for a sufficiently long duration to ensure essentially complete combustion. The wood fuel heating apparatus of the present invention employs a new and advantageous hearth structure having an internal combustion chamber for combustion of the volatile gas from the wood fuel at an extremely high temperature and thereby to ensure the requisite complete combustion as well as a highly efficient burning process. The heating apparatus also employs an exhaust blower and an on-off air inlet valve in a novel and effective manner which provides for both combustion and non-combustion modes of operation and in its combustion mode a predetermined optimum rate of inlet air for optimum combustion.