Electric resistance heating devices – Heating devices – Convection space heater
Patent
1997-02-21
1998-10-20
Jeffery, John A.
Electric resistance heating devices
Heating devices
Convection space heater
392354, 392344, 219540, 219544, 165 55, F24D 1904
Patent
active
058259732
ABSTRACT:
An electric baseboard heater includes a ceramic glass block within which a steel wire electric heating element is insert molded. The ceramic glass block is mounted in a heater housing which includes a lower draft opening below the ceramic glass block and an upper air outlet above the ceramic glass block. When a voltage is applied to the steel wire, heat is generated by the wire and is absorbed and radiated by the ceramic glass block. Cool air is drawn into the draft opening in the housing and up past the ceramic glass block whereupon it exits the air outlet heated by the ceramic glass block. The heater is efficient because the ceramic glass heats very quickly and continues to radiate heat for a period of time after the voltage is removed from the steel wire. It is safe because the hot electric heating element is contained within the ceramic glass where it cannot contact flammable items. According to one embodiment, the ceramic glass block is provided with fins which aid in the transfer of heat from the block to the air passing through the heater. In this embodiment, the block is preferably mounted with the fins facing the front of the heater and a ceramic glass cover plate is mounted in front of the ends of the fins. According to another embodiment, the ceramic glass block has continuous surfaces (i.e., no fins) and is mounted at the front portion of the heater such that air flows behind the block through the heater.
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Solar Product Inc., Thomas Register 1994, 1995 HEA/14986
Lehoe James S.
Lehoe Michael C.
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