Thermal switch for energy sustaining water heater

Details Thermal switch for energy sustaining water heater Thermal switch for energy sustaining water heater

2008-09-09

2011-12-27

Wilson, Gregory A (Department: 3749)

Liquid heaters and vaporizers

Stand boiler

And condition responsive feature

C122S00400R, C431S080000

Reexamination Certificate

active

08082888

ABSTRACT:
A water heater is provided that includes a tank for storing water and a combustion chamber in thermal communication with the tank for heating the water. The combustion chamber contains a pilot burner and at least one main burner. The water heater also includes a flue containing a flue damper to control the passage of exhaust gases from said combustion chamber. The water heater further includes an electrical control circuit connected to said flue damper. The electrical control circuit includes a thermal switch positioned proximal to the main burner The thermal switch is configured to prevent the flue damper from closing while the main burner is firing.

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patent: 2009/0277399 (2009-11-01), Guzorek et al.
patent: 2010/0012048 (2010-01-01), Whitford et al.

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