Heating and ventilating system
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United States of America Patent
Stats
-
May 30, 1989
Issued Date -
N/A
app pub date -
Jan 25, 1988
filing date -
Mar 13, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A heating and ventilating system has a space heating device, in which heat is generated by combustion of a fuel, and which heats air for a building. A heat exchanger has one side through which exhaust air from the building flows to the exterior. Through the other side of the heat exchanger, fresh, makeup air for the building is supplied, and this may pass through the heater. An exhaust conduit from the heater, for combustion products, opens into the exhaust air line connected to the one side of the heat exchanger. This enables heat to be extracted from air leaving the building and further heat to be extracted from the combustion products, this heat being transferred to the incoming air in the heat exchanger.
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