Heating systems – Automatic control – Water
Patent
1976-07-27
1978-04-18
Wayner, William E.
Heating systems
Automatic control
Water
126 5, 126299R, 122 20B, 165DIG2, F24D 308
Patent
active
040847454
ABSTRACT:
A heat exchanger is provided having coiled tubing and radiating fins about which hot flue gases for the cooking equipment circulate to heat a medium passing therethrough. Temperature control valves are selectively adjustable to pass the heated water along either of two sets of conduits for heating makeup air or heating water for use in the facility, respectively. These temperature control valves are set so that when the ambient room temperature is less than 70.degree. F., the medium heated by the flue gases is passed through a second heat exchanger which intercepts incoming air to warm it before its admission in the building. When the temperature exceeds 70.degree. F., the valves automatically switch to direct the heated medium to a third exchanger for heating tap water. A bypass arrangement recirculates the heat carrying medium through the primary heat exchanger until it achieves a predetermined temperature to prevent condensation.
REFERENCES:
patent: RE15000 (1920-12-01), Stafford
patent: 2369972 (1945-02-01), Meagher
patent: 2376173 (1945-05-01), Mueller
patent: 2699759 (1955-01-01), Kuhner
patent: 3194308 (1965-07-01), Haried
patent: 3896992 (1975-07-01), Borovina et al.
patent: 3899581 (1975-06-01), Bray, Sr.
Netter George J.
Tapolcai, Jr. William E.
Wayner William E.
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