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

Thermostatically regulated space heaters for burning wood, coal and the like

Patent ·
OSTI ID:5474092
A coal- or wood-burning, thermostatically-operated space heater is shown and described. The heater includes a single thermostatically-operated draft control damper for controlling the supply of primary and secondary air to the fire chamber to avoid extreme temperature fluctuations, and thus provide more even heating, to avoid excessive fuel consumption, and to maximize burning efficiency. A movable grate assembly provides a simple, efficient mechanism for stirring the fuel and clearing the fire of ashes and spent fuel.
Assignee:
Shenandoah Manufacturing Co., Inc.
Patent Number(s):
US 4169457
OSTI ID:
5474092
Country of Publication:
United States
Language:
English