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US 5,628,303 AGranted
Radiant space heater for residential use
AssigneeSolaronics, Inc.
InventorsFarshid Ahmady, Srinivas C. Duvvuri
Life of this patent
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AssigneeSolaronics, Inc.
InventorsFarshid Ahmady, Srinivas C. Duvvuri
Estimating the term…
A compact gas-fired radiant space heater is adapted for residential use, having an output in the 20k BTU to 40k BTU/hr range and exterior dimensions small enough to allow it to be installed in a standard two foot by four foot suspended ceiling opening. A radiator tube having a total length of approximately 15 feet is bent into a serpentine shape, and combustion control components are housed within a plenum chamber supplying combustion air to the tube, both the tube and the chamber being encircled by a frame that fits within the two foot by four foot opening. The combustion control components are attached to a chassis plate whereby the components are removable from the plenum chamber as a unit to enhance serviceability of the heater. A burner venturi of novel configuration produces a flame that is less than four feet long yet which is relatively quiet. An air flow switch senses the dynamic pressure of an air stream issuing from a fan which pressurizes the plenum chamber, shutting off the supply of gas to the burner if the pressure reading indicates unacceptably low air flow.
A gas-fired radiant space heater comprising a radiator tube having an inlet end, a plenum chamber in communication with the inlet end of the tube, and combustion control means comprising a plurality of operatively interconnected components for supplying a combustible mixture of air and fuel gas to a burner adjacent the tube inlet end, the radiator tube, plenum chamber and combustion control means disposed essentially in a plane, the radiant heater characterized in that:
A gas-fired radiant space heater wherein a radiator tube is supplied with a combustible mixture of fuel gas and air, said mixture being supplied by combustion control means comprising a fan for generating a flow of air to pressurize a plenum chamber in communication with an inlet end of the radiator tube, a gas valve for metering the supply of the fuel gas to the tube, and air flow switch means for sensing the amount of air supplied to the tube and actuable in response to the amount of air supplied to the tube being insufficient for safe and proper operation of the heater, actuation of the switch means resulting in closing of the gas valve, the radiant heater characterized in that:
A gas-fired radiant space heater in the 20k to 40k BTU/hr range comprising a burner venturi for producing a flame by burning of a combustible mixture of air and fuel gas, combustion control means for controlling the supply of the combustible mixture to the burner venturi, and a radiator tube comprising at least a first straight segment adjacent the burner venturi for containing the flame and a second straight segment connected with the first straight segment by a contiguous 180.degree. bend, the radiant heater characterized in that:
Dependencies are inferred from the claim text.