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U.S. Department of Energy
Office of Scientific and Technical Information

Heating apparatus comprising a heat recovery apparatus

Patent ·
OSTI ID:5580295
A heating apparatus includes at least one combustion air inlet, a reverse-draft hearth having a grill positioned within a hearth plate, an ash receptacle for recovering combustion wastes, a fume outlet combustion chamber positoned under the reverse-draft hearth, and a heat recovery device. A heat transport and exchange fluid is adapted to be fed through the heat recovery device, and it circulates through the device in order to recover heat generated in the hearth. The heat recovery device also includes at least one casing positioned beneath the hearth, over the ash receptacle, and which is spaced from the walls of the heating apparatus. The rear portion of the casing is connected to the hearth plate so as to block combustion gases so that the combustion gases will pass over and thereafter under the casing prior to leaving the apparatus via the fume outlet.
Assignee:
EDB-84-010799
Patent Number(s):
US 4397293
OSTI ID:
5580295
Country of Publication:
United States
Language:
English

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