Liquid heaters and vaporizers – Subsidiary
Patent
1976-06-04
1978-05-23
Sprague, Kenneth W.
Liquid heaters and vaporizers
Subsidiary
237 19, F22D 100, F22B 118
Patent
active
040904741
ABSTRACT:
A water heating system comprising an exhaust gas water preheating coil supplying water via a storage tank to a water heating boiler.
REFERENCES:
patent: 2613653 (1952-10-01), Wald
patent: 2920608 (1960-01-01), Orban
patent: 3896992 (1975-07-01), Borovina
Farkas Robert D.
Sprague Kenneth W.
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