Refrigerant-heating type heating apparatus

Details Refrigerant-heating type heating apparatus Refrigerant-heating type heating apparatus

1988-01-14

1989-02-07

Davis, Jr., Albert W.

Heat exchange

Movable heating or cooling surface

Rotary drum

165921, 237 2B, 622386, 622387, F25B 2900

Patent

active

048025291

ABSTRACT:
A heating apparatus includes a refrigeration cycle having a compressor, an indoor heat exchanger, and a refrigerant-heating unit. The unit includes a heat exchanger section through which a refrigerant flows, a burner, and a guide duct for guiding a combustion gas produced by the combustion of the burner so as to heat the refrigerant flowing through the heat exchanger section. A combustion rate of the burner is controlled in accordance with the difference between a room temperature and a preset temperature. When the combustion rate is within a specified range, it is shifted, in accordance with the temperature of the refrigerant flowing into the heat exchanger section, so as to prevent the condensation of water vapor in the combustion gas flowing through the guide duct.

REFERENCES:
patent: 4112705 (1978-09-01), Sisk et al.
patent: 4318366 (1982-03-01), Tompkins
patent: 4420034 (1983-12-01), Vander Vaart
patent: 4441901 (1984-04-01), Endoh
patent: 4445638 (1984-05-01), Connell et al.
patent: 4457137 (1984-07-01), Kohzuma
patent: 4482008 (1984-11-01), Nomaguchi et al.
patent: 4506521 (1985-03-01), Asano et al.
patent: 4516408 (1985-05-01), Chiba
patent: 4553401 (1985-11-01), Fisher
patent: 4687133 (1987-08-01), Karlstedt

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