Furnace

Claim 2

A gas furnace including: a furnace housing having an air inlet and an air outlet means for circulating air through said housing, damper means controlling the flow of air from said outlet, a burner secured within said housing adjacent to said inlet, profile damper means in said housing for controlling the proportion of air passing through said housing which bypasses said burner, and differential pressure actuated means connected to said profile dampers and operable to maintain a predetermined differential pressure on opposite sides of said profile dampers.

Claim 3

The structure of claim 1 and in which said burner comprises an elongated burner manifold, and in which said profile damper means are mounted above and beLow said burner manifold.

Claim 4

The structure of claim 1 and in which said air circulating means is in said housing.

Claim 5

The structure of claim 1 and in which said damper means controlling the flow of air from said outlet is normally closed unless said air-circulating means is in operation.

Claim 6

The structure of claim 1 and including remote control means for regulating the position of said damper means controlling the flow of air through said outlet.

Claim 7

The structure of claim 5 and including auxiliary means for opening said damper means controlling the flow of air from said outlet.

Claim 8

The structure of claim 1 and including means preventing the operation of said air circulation means in the event the incoming air is below a predetermined minimum temperature.

Claim 9

A gas furnace including: a furnace housing having an air inlet and an air outlet, means for circulating air through said housing, damper means controlling the discharge of air from said outlet, a damper control motor for controlling the position of said damper means, remote control means connected to said motor for adjusting the position of said damper means, a burner in said housing adjoining the inlet end thereof including gas supply means providing fuel thereto, profile damper means in said housing for controlling the flow of air which bypasses said burner, second motor means connected to said profile damper means for opening and closing the same, means actuated by differential pressure on opposite sides of said profile damper means connected to said second motor means and controlling the position of said profile dampers dependent upon the pressure on opposite sides thereof.

Claim 10

A gas furnace including: a furnace housing having an air inlet and an air outlet, means for circulating air through said housing, damper means controlling the discharge of air from said outlet, a damper control motor for controlling the position of said damper means, remote control means connected to said motor for adjusting the position of said damper means, a burner in said housing adjoining the inlet end thereof including gas supply means providing fuel thereto, profile damper means in said housing for controlling the flow of air which bypasses said burner, second motor means connected to said profile damper means for opening and closing the same, means actuated by differential pressure on opposite sides of said profile damper means connected to said second motor means and controlling the position of said profile dampers dependent upon the pressure on opposite sides thereof.

Claim 11

The structure of claim 8 and including a circuit to said air-circulating means for actuating the same, and means in said circuit operable when the air entering said housing goes below a predetermined minimum to open said circuit.

Claim 12

The structure of claim 8 and including an auxiliary means for actuating said damper means controlling the flow of air from said outlet.

Claim 13

A gas furnace including: a furnace housing including an air inlet and an air outlet, means for circulating air through said housing, a burner mounted near the inlet end of said housing and including a burner enclosure, a burner manifold extending across said enclosure, and foraminous baffle plates on either side of said burner manifold within said enclosure through which air may flow to support combustion, damper means controlling the flow of air through said housing outlet, profile damper means in said housing inlet regulating the proportion of air entering said housing which bypasses said burner enclosure, means controlled by variations in differential pressure on opposite sides of said burner connected to said profile dampers to control the same.

Claim 14

A gas furnace including: a furnace housing including an air inlet and an air outlet, means for circulating air through said housing, a burner mounted near the inlet end of said housing and including a burner enclosure, a burner manifold extending across said enclosure, and foraminous baffle plates on either side of said burner manifold within said enclosure through which air may flow to support combustion, damper means controlling the flow of air through said housing outlet, profile damper means in said housing inlet regulating the proportion of air entering said housing which bypasses said burner enclosure, means controlled by variations in differential pressure on opposite sides of said burner connected to said profile dampers to control the same.

Claim 15

The structure of claim 11 and in which said profile damper means are on opposite sides of said burner enclosure.

Claim 16

The structure of claim 11 and in which said burner enclosure are laterally elongated, and in which said profile damper means are above and below said burner enclosure.

Claim 17

The structure of claim 13 and in which said means controlled by variations in differential pressure operate said profile damper means in unison.

Claim 18

The structure of claim 11 and including remote controlled means for actuating said damper means controlling the flow of air through said outlet.