John A Oliver

US Patent:

41438175, Mar 13, 1979

Filed:

Feb 17, 1977

Appl. No.:

5/769726

Inventors:

John F. Oliver - Wilmington DE

International Classification:

F24B 700

US Classification:

237 51

Abstract:

An automatically controlled residential heating system based on the heat from a fireplace comprising the normal fireplace, hearth, combustion zone, flue, and damper; the flue being divided into two parallel flue passages one of which is unobstructed and the other of which contains a heat exchanger adapted to absorb the heat from the flue gases into a fluid passing through the heat exchanger and then into space heating elements in the residence; the system including automatic devices for sensing the temperature in the heat exchanger and the temperature in the residential spaces to be heated, an automatic control to act upon the temperature sensing means and to move a diverter which serves to pass the flue gases into either or both of the parallel flue passages in any desired proportion, an automatic relief valve means for relieving excessive temperature build-up in the heat exchanger, and an automatic extinguishing device for extinguishing the burning material in the fireplace if the means for sensing the temperature in the heat exchanger reaches an undesirably high level.

US Patent:

41066936, Aug 15, 1978

Filed:

Apr 22, 1977

Appl. No.:

5/790014

Inventors:

John F. Oliver - Wilmington DE

International Classification:

F24B 704

US Classification:

237 51

Abstract:

An automatically controlled residential heating system based on the heat from a fireplace comprising the normal fireplace, hearth, combustion zone, flue, and damper; the flue being divided into two parallel flue passages one of which is unobstructed and the other of which contains a heat exchanger adapted to absorb the heat from the flue gases into air passing through the heat exchanger and then into space heating elements in the residence; the system including automatic devices for sensing the temperature in the residential spaces to be heated, an automatic control to act upon the temperature sensing means and to move a diverter which serves to pass the flue gases into either or both of the parallel flue passages in any desired proportion and an automatic control for an air blower to circulate the hot air leaving the heat exchanger.