Stoves and furnaces – Stoves – Cooking
Patent
1986-11-12
1988-04-05
Makay, Albert J.
Stoves and furnaces
Stoves
Cooking
98 381, 126112, 237 46, 237 55, F24F 1304
Patent
active
047351306
ABSTRACT:
Fresh air make-up apparatus for a furnace located in an enclosed building comprises an elongated diffuser housing positioned adjacent the furnace, with the housing having an inlet in communication with fresh outside air and a pair of outlets, one being connected to the cold air return of a forced air furnace at a point substantially upstream of the heat exchanger, and the other outlet leading to the room. The outlet leading to the cold air return provides fresh make-up air for the building, while the opening leading to the room provides both a means for diffusing and preheating the fresh air supplied to the cold air return and a means for providing fresh air diffused with warm room air to the combustion in the combustion chamber of the furnace. The apparatus also includes a removable filter for removing contaminants from the fresh air. The apparatus can include a heat exchanger for preheating the fresh air with warm air from the warm air duct of the furnace. This warm air is then exhausted outside the building to provide a continuous air exchange within the building. The apparatus includes an elongated housing having an inlet at the upper end, a partition dividing the housing into upper and lower secctions, a first duct leading downwardly from an opening in the partition to an open end adjacent the bottom of the housing, a cold air duct extending sideways from the first duct at a position above the open end and leading to the cold air return, and a diffuser opening in the housing positioned above the open end of the first duct. The filter is positioned slightly above the partition and is removable through an access opening.
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Makay Albert J.
Waters John A.
Westphal David W.
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