Fireplace heated grate

Details Fireplace heated grate Fireplace heated grate

1981-05-04

1983-10-11

Scott, Samuel

Stoves and furnaces

Liquid heater

F24B 700

Patent

active

044085940

ABSTRACT:
A hollow heated grate for a fireplace is provided with an electric motor and a blower inside of the heated fireplace enclosure for circulating cool air from the area to be heated through the hollow grate and returning the heated air to the area to be heated. The electric motor and blower are physically enclosed in a metal plenum box. To avoid overheating the electric motor windings, cool air is circulated over the motor windings when the electric motor is running and cool air is also circulated over the electric motor windings when the electric motor is not running by novel diversionary air vent means including sensing means for opening a movable closure adjacent the diversionary air vent when the electric motor and blower are not circulating cool air.

REFERENCES:
patent: 4010729 (1977-03-01), Egu
patent: 4305473 (1981-12-01), Martenson

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