Automatic temperature and humidity regulation – Hot-air furnace – Air and fire control
Patent
1977-08-08
1978-09-05
Newton, Dorsey
Automatic temperature and humidity regulation
Hot-air furnace
Air and fire control
126110R, 165DIG2, F28F 110
Patent
active
041113578
ABSTRACT:
A high energy saving heat exchanger is provided for the hot exhaust gases of a furnace which has a combustion chamber, a burner with electrical controls, a furnace heat exchanger and an exhaust pipe adapted for connection with a stack. The high energy saving heat exchanger includes a housing having an air chamber with an exhaust inlet connected to said furnace exhaust pipe and an exhaust outlet. An exhaust conduit interconnects said housing exhaust outlet and stack. A continuous circuitous tubing is nested within the air chamber of said housing at one end connected to said exhaust inlet and at its other end connected to said exhaust outlet. An exhaust fan is interposed in said exhaust conduit for drawing exhaust gases through said heat exchanger tubing and delivering said gases under pressure to said stack. A hot air duct is interposed between said housing and a floor surface defining an area to be heated and including a hot air register. Heat duct communicates with said air chamber. A motor operated blower is mounted on said housing and has room air intake communicating with said air chamber for forcing room air through said housing and into contact with said circuituitous exhaust tubing and for delivering through said hot air duct. An outside fresh air conduit has an air intake extending through the building outside wall and an outlet which extends into the combustion chamber. A normally closed motor operated damper is disposed within said fresh air conduit whereby upon energization of said burner said damper is opened, said air blower activated and said exhaust fan energized.
REFERENCES:
patent: 2022835 (1935-12-01), Whiteley
patent: 2189749 (1940-02-01), Windheim et al.
patent: 2504315 (1950-04-01), Feuerfile
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