Furnace draft hood with outside air supply

Details Furnace draft hood with outside air supply Furnace draft hood with outside air supply

1980-07-11

1981-12-22

Makay, Albert J.

Stoves and furnaces

Stovepipes

Ventilation

98 48, 126307A, F23J 1100

Patent

active

043065392

ABSTRACT:
A heater venting system in which a draft hood which connects at its upper end to a chimney, which has an open lower end and which has an opening intermediate its upper and lower ends connected to the heater exhaust flue has its open lower end connected for gas flow to a chamber which is open to the building inside air at its upper end and which is connected at its lower end to air outside the building by a damper controlled duct to provide an inside air-outside air interface at, or above the lower end of the hood to restrict the flow of building inside air into the hood.

REFERENCES:
patent: 2017562 (1935-10-01), Brown
patent: 2090053 (1937-08-01), Kuenhold
patent: 2264547 (1941-12-01), Olds
patent: 4118173 (1978-10-01), Shakiba
patent: 4187833 (1980-02-01), Zahora et al.

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