Method and apparatus for operating a furnace from a 12V DC batte

Details Method and apparatus for operating a furnace from a 12V DC batte Method and apparatus for operating a furnace from a 12V DC batte

1989-12-11

1990-08-07

Tanner, Harry B.

Automatic temperature and humidity regulation

Hot-air furnace

Air and fire control

307 66, F23N 500

Patent

active

049460960

ABSTRACT:
A furnace which normally operates from a residential AC power source is adapted to operate on auxiliary DC power by changing the normal control function to substantially prevent the furnace from operating in the high heat mode during periods of auxiliary power use. Relays can be used to automatically connect the emergency power and to effect the change of the control function.

REFERENCES:
patent: 4349148 (1982-09-01), Liberto et al.
patent: 4400626 (1983-08-01), Lacy
patent: 4638942 (1987-01-01), Ballard et al.
patent: 4673826 (1987-06-01), Masson
patent: 4729207 (1988-03-01), Dempsey et al.
patent: 4797567 (1989-01-01), Pappas

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