Heat exchanger
Patent
·
OSTI ID:6273977
An improved heat exchanger for use with a heating furnace is disclosed. The exchanger includes a first plurality of tubes which conduct hot exhaust gases from the furnace. Tubes carrying outside air for combustion in the furnace pass proximate the first group of tubes within a heat exchange chamber wherein heat is transferred to the combustion air via a heat transfer medium. Similarly, ambient air in the building passes through the heat exchange chamber of the exchanger through a third plurality of tubes. These tubes also pass proximate the tubes carrying hot exhaust gases. In a preferred embodiment, a conduit through which the exhaust gases transit from the furnace to the first plurality of tubes in the heat exchanger can be routed through plenums through which combustion air and ambient air circulate after exiting the second and third pluralities of tubes.
- Assignee:
- IFI; EDB-81-092227
- Patent Number(s):
- US 4241874
- OSTI ID:
- 6273977
- Country of Publication:
- United States
- Language:
- English
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