Fuel-fired condensing type forced air heating furnace
This patent describes a fuel-fired type forced air heating furnace. It comprises: a housing having a heating chamber with an air inlet opening and a supply air outlet opening, and a return chamber communicating with the heating chamber through the air inlet opening and having a return air intake opening; a generally cylindrical primary heat exchanger extending along a central longitudinal axis and disposed within the heating chamber. The primary heat exchanger having a generally circular front inlet end wall and generally circular rear discharge end wall spaced apart from the front inlet end wall along the central longitudinal axis; a transfer manifold disposed within the heating chamber and having a first end portion extending outwardly across and covering the rear discharge end wall of the primary heat exchanger, and a second end portion extending from the primary heat exchanger toward the return chamber in a direction generally transverse to the central longitudinal axis; a condensing heat exchanger; fuel/air burner means; discharge opening means; a draft inducer fan; and a supply blower.
- Assignee:
- Rheem Manufacturing Co., New York, NY (USA)
- Patent Number(s):
- US 4960102; A
- Application Number:
- PPN: US s 7-475181
- OSTI ID:
- 6327802
- Country of Publication:
- United States
- Language:
- English
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