Electric heating – Heating devices – Resistive element: igniter type
Patent
1983-07-14
1986-06-03
Bartis, A.
Electric heating
Heating devices
Resistive element: igniter type
165 29, 219364, 219365, 219370, 219376, 219485, 237 2A, H05B 102, F24H 304, F24D 500
Patent
active
045931763
ABSTRACT:
A unit for converting a fossil fuel burning furnace into an electrical furnace for utilization of electrical energy for heating, except under those periods of high energy usage during which the cost of electrical power is high, or during periods when extreme loads exist upon the electrical supply. During such times, a control system is provided to automatically revert the furnace to a fossil fuel burning operation. The unit includes an electrical heating device including a plurality of electrical heating elements arranged in a vertically staggered array for insertion into the ductwork of the fossil fuel burning forced air furnace, such that the elements are in close association to the plenum of the furnace and such that the fan or blower of the furnace provides air flow past such elements.
The unit includes a positionally extensible air deflector extending across the plenum in parallel relation to the heating elements such that the air being delivered from the fan or blower of the furnace is properly dispersed past the electrical heating elements prior to delivery through the ductwork.
The unit further includes temperature sensing mechanisms to control the fan or blower of the furnace system to control air flow when the electrically heated air reaches a predetermined temperature. A residual heat sensor controls the operation of the electrical heating elements to prevent energization thereof until the residual hot air from the heat exchanger has been dispersed.
REFERENCES:
patent: 2242630 (1941-05-01), Steingruber
patent: 2449755 (1948-09-01), Taylor
patent: 2458268 (1949-01-01), Hinds
patent: 2759708 (1956-08-01), Burgess
patent: 2893639 (1959-07-01), Martin
patent: 2971076 (1961-02-01), Ferguson
patent: 3061706 (1962-10-01), Lunbom
patent: 3084741 (1963-04-01), Millspaugh
patent: 3098145 (1963-07-01), Raymond
patent: 3906242 (1975-09-01), Stevenson
patent: 4417131 (1983-11-01), Carl
Bartis A.
Cwayna James R.
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