Warm air furnace

Details Warm air furnace Warm air furnace

2009-06-16

2011-12-13

Basichas, Alfred (Department: 3743)

Stoves and furnaces

Hot-air furnaces

Liquid or gaseous fuel

C126S09900D, C126S112000

Reexamination Certificate

active

08074636

ABSTRACT:
A warm air furnace capable of reliably carrying out a fuel consumption conserving operation regardless of a heating load is equipped with an ecology operation setting unit for setting a saving operation function and a moderate operation function. The saving operation function makes a target temperature setting unit decrease a target temperature by a first predetermined temperature after a lapse of a predetermined time after a room temperature reaches the target temperature. The moderate operation function limits a target combustion amount when the room temperature is higher than the target temperature by a second predetermined temperature or more. An eco-operation switch is capable of turning the ecology operation setting unit on and off.

REFERENCES:
patent: 6089221 (2000-07-01), Mano et al.
patent: 08-189708 (1996-07-01), None
patent: 11-023064 (1999-01-01), None

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