Secondary heating system

Details Secondary heating system Secondary heating system

2006-06-08

2009-12-08

McAllister, Steven B (Department: 3749)

Heating systems

Combined with water heater

C237S00200B, C237S00800C, C237S048000, C126S101000

Reexamination Certificate

active

07628337

ABSTRACT:
A heating system operates in supplemental mode to carry water from a hot water supply of the water heater to a heat exchanger within an air passage in the furnace. A water return passage returns the water from the air passage back to the water heater. Air within the air passage passes through the heat exchanger and is heated from the water within. The water then returns to the water tank through a water return passage. A supplemental thermostat is connected to the system to control an air circulator for the furnace without requiring the furnace to be activated. The furnace will turn on and heat the air only if supplemental mode is not sufficient to maintain the desired temperature.

REFERENCES:
patent: 1665520 (1928-04-01), Wood
patent: 1779714 (1930-10-01), Schmidt
patent: 2130894 (1938-09-01), Muir
patent: 2294579 (1942-09-01), Sherman
patent: 2314086 (1943-03-01), Giffords
patent: 2533508 (1950-12-01), Riu
patent: 3181793 (1965-05-01), MacCracken et al.
patent: 3198190 (1965-08-01), Gordon
patent: 3601310 (1971-08-01), Hein
patent: 3896992 (1975-07-01), Borovina et al.
patent: 3999709 (1976-12-01), Estabrook
patent: 4124178 (1978-11-01), Burke
patent: 4134448 (1979-01-01), Luksus
patent: 4136731 (1979-01-01), DeBoer
patent: 4352454 (1982-10-01), Ewing
patent: 4371111 (1983-02-01), Pernosky
patent: 4401261 (1983-08-01), Brown
patent: 4403573 (1983-09-01), Cauchy
patent: 4410135 (1983-10-01), Skyinskus
patent: 4412526 (1983-11-01), DeGrose
patent: 4424934 (1984-01-01), Wilhoite
patent: 4462542 (1984-07-01), Person
patent: 4483310 (1984-11-01), Kelly
patent: 4832259 (1989-05-01), Vandermeyden
patent: 4938172 (1990-07-01), Belovarac
patent: 5203500 (1993-04-01), Horne, Sr.
patent: 5544645 (1996-08-01), Armijo et al.
patent: 6123147 (2000-09-01), Pittman
patent: 6234400 (2001-05-01), Guyer
patent: 6612267 (2003-09-01), West
patent: 6695046 (2004-02-01), Byrnes et al.
patent: 2003/0052181 (2003-03-01), Bolster
patent: 2003/0083760 (2003-05-01), Keeley
patent: 2005/0098643 (2005-05-01), Guyer
patent: 2005/0150238 (2005-07-01), Helt

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