Liquid heaters and vaporizers – Stand boiler – And condition responsive feature
Patent
1997-02-28
1999-07-20
Walberg, Teresa
Liquid heaters and vaporizers
Stand boiler
And condition responsive feature
122 17, 110162, 126350R, F22B 504
Patent
active
059243902
ABSTRACT:
A blower draws air through an inlet duct from outside a building or dwelling and injects air and fuel into a sealed combustion chamber where they are ignited and burned within a ceramic crucible within combustion chamber. The pressurized combustion gases flow up an exhaust stack in the water tank of the water heater. The exhaust stack is connected to a vent that extends through a building outside wall. The vent is surrounded by the inlet duct which has an opening spaced from the outlet vent so that air from the vent is not captured by the inlet. The combustion chamber and the heat exchanger are sealed from the interior of the building and both the air inlet to the blower and the air outlet from the heat exchanger freely communicate to the outside of the building. A timer within the controller operates the blower for a period of time after the fuel supply to the burner has been shut off. This operation of the blower assures that residual heat within the combustion chamber is transferred to the water in the tank.
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"Bock Cglass.RTM. Lined Oil Water Heaters" flyer, Form No. 1008, Rev. 3-96, Bock Water Heaters, Madison, Wisconsin.
Walberg Teresa
Wilson Gregory A.
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