Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1987-03-04
1988-12-13
Bartis, Anthony
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
165 55, 219365, 237 17, F22D 128, F24H 306, H05B 300, F24D 1304
Patent
active
047912740
ABSTRACT:
An electrically-powered space heater has a boiler connected to supply a vaporized working fluid consisting of a 2 to 1 mixture of ethylene glycol and water to a slightly upwardly inclined, closed-end, finned-tube heater exchanger at a pressure of between -5 p.s.i. and 15 p.s.i. and at a temperature of between approximately 190.degree. F. and 250.degree. F. The combined internal volume of the boiler and heat exchanger is between about seventeen and twenty cubic inches with the boiler having an internal volume of about sixteen cubic inches and sized to be at least four times the internal volume of the heat exchanger. The heat exchanger has a length of between one and eight feet and the boiler is heated by an electric resistance heating means having a wattage of between 300 and 1200 watts, with the wattage increasing at a rate of approximately 150 watts per half cubic inch increase in internal system volume in the internal volume range set forth above.
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Bartis Anthony
Spangler, Jr. Edwin L.
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