Heating systems – Automatic control – Combined radiator and boiler
Patent
1984-03-05
1985-01-29
Jones, Larry
Heating systems
Automatic control
Combined radiator and boiler
126101, 237 16, 237 78R, F24H 306
Patent
active
044960999
ABSTRACT:
A low pressure system for extracting heat from the fire combustion zone within a fireplace, wood or coal burning stove, or the like, and for automatically distributing it within a region adjacent to the fire. Preferably the apparatus includes a first heat exchanger adapted to be disposed within the fire combustion zone, and a remote reservoir containing a volume of a preselected working heat exchange fluid, preferably water. The reservoir is vented to the atmosphere and it is in fluid flow communication with an electrical circulating pump which forwards the heat exchange medium under relatively low pressure to the first heat exchanger within the fire combustion zone. A second heat exchanger preferably remotely disposed from the fire combustion zone and the reservoir is in fluid flow communication with the first heat exchanger, and thus warms up in response to circulation of fluid. An immersion control switch operatively associated with the reservoir initiates operation of the pump to establish fluid recirculation between the first and second heat exchangers in response to a thermocouple disposed within the reservoir. A fan assembly associated with the second heat exchanger includes a temperature responsive control which limits operation to a proper temperature. A solenoid valve preferably coupled in fluid flow communication between the pump outlet and the reservoir is controlled by the immersion control switch for bypassing the pump and draining the heat exchangers when either the thermocouple senses a preselected maximum temperature or electrical power is interrupted.
REFERENCES:
patent: 1778146 (1930-10-01), Davis
patent: 2477734 (1949-08-01), Gehrke
patent: 2509624 (1950-05-01), Baumann
patent: 3277275 (1966-10-01), Brusner
patent: 3681567 (1972-08-01), Boecher
patent: 4105894 (1978-08-01), Parks
patent: 4340026 (1982-07-01), Smith
patent: 4344411 (1982-08-01), Dearborn
patent: 4424934 (1984-01-01), Wilhoite
Carver Stephen D.
Jones Larry
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