Mobile home furnace with air circulator outlet means

Claim 2

A compact sealed combustion furnace adapted to be mounted within a closet or alcove of a mobile home, said furnace having an exterior casing including top, rear and sidewalls, flue means extending through said top wall, combustion chamber providing casing means mounted within said exterior casing in spaced relation to said walls, the upper portion of said exterior casing above the top of said combustion chamber casing means providing a blower compartment, room air inlet means communicating with said blower compartment through the front of said exterior casing, flue connection tube means communicating with said combustion casing means and extending upwardly from the top rear portion thereof through the rearward portion of said blower compartment, passage providing means extending between the upper portion of said flue tube and said flue means, a squirrel cage blower mounted in said blower compartment including a scroll casing having air intake means on its sides communicating with said blower compartment and a bottom air outlet for directing air over and around said combustion chamber casing, wherein the improvement comprises providing auxiliary air outlet means for said blower, said auxiliary air outlet means being associated with the rear wall of said blower and being oriented to direct the air discharged therefrom first against said flue tube means and then downwardly into the space between said combustion chamber casing means and the rear wall of said exterior casing.

Claim 3

The furnace of claim 1 in which said auxiliary aIr means includes shaping said scroll rear wall to provide passage defining extensions on each side thereof which at least partially straddle said flue tube means.

Claim 4

The furnace of claim 1 in which said auxiliary air means includes providing said scroll rear wall with at least one slot therethrough.

Claim 5

The furnace of claim 3 in which a plurality of said slots are provided in generally transverse alignment across said scroll rear wall at a spaced distance above the bottom thereof.

Claim 6

The furnace of claim 1 in which a plurality of said flue connection tubes are provided.

Claim 7

The furnace of claim 1 in which said auxiliary air means includes scroll passage defining extensions on each side of said scroll rear wall which at least partially straddle said flue tube means, and at least one slot through said rear wall at a spaced distance above said passage defining extensions.

Claim 8

The furnace of claim 6 in which said flue tube means comprises a plurality of flue connection tubes.

Claim 9

A compact sealed combustion furnace adapted to be mounted within a closet or alcove of a mobile home, said furnace having an exterior casing including top, rear and sidewalls, flue means extending through said top wall, combustion chamber providing casing means mounted within said exterior casing in spaced relation to said walls, the upper portion of said exterior casing above the top of said combustion chamber casing means providing a blower compartment, room air inlet means communicating with said blower compartment through the front of said exterior casing, a plurality of flue connection tubes communicating with said combustion casing means and extending upwardly from the top rear portion thereof through the rearward portion of said blower compartment, passage providing means extending between the upper portions of said flue tubes and said flue means, a squirrel cage blower mounted in said blower compartment including a scroll casing having air intake means on its sides communicating with said blower compartment and a bottom air outlet for directing air over and around said combustion chamber casing, wherein the improvement comprises providing auxiliary air outlet means for said blower, said auxiliary outlet means including at least one slot extending through the rear wall of said scroll at a distance above the bottom thereof, said slot being oriented to direct the air discharge therefrom towards flue tubes and then downwardly into the space between said combustion chamber casing means and the rear wall of said exterior casing.

Claim 10

A compact sealed combustion furnace adapted to be mounted within a closet or alcove of a mobile home, said furnace having an exterior casing including top, rear and sidewalls, flue means extending through said top wall, combustion chamber providing casing means mounted within said exterior casing in spaced relation to said walls, the upper portion of said exterior casing above the top of said combustion chamber casing means providing a blower compartment, room air inlet means communicating with said blower compartment through the front of said exterior casing, a plurality of flue connection tubes communicating with said combustion casing means and extending upwardly from the top rear portion thereof through the rearward portion of said blower compartment, passage providing means extending between the upper portions of said flue tubes and said flue means, a squirrel cage blower mounted in said blower compartment including a scroll casing having air intake means on its sides communicating with said blower compartment and a bottom air outlet for directing air over and around said combustion chamber casing, wherein the improvement comprises providing auxiliary air outlet means for said blower, said auxiliary outlet means including at least one slot extending through the rear wall of said scroll at a distance above the bottom thereof, said slot being oriented to direct the air discharge therefrom towards flue tubes and then downwardly into the space between said combustion chamber casing means and the rear wall of said exterior casing.

Claim 11

The furnace of claim 8 in which a plurality of said slots are provided in generally transverse alignment across said scroll rear wall in opposing relation to said flue tubes for directing air against and around all of said flue tubes.

Claim 12

A compact sealed combustion furnace adapted to be mounted within a closet or alcove of a mobile home, said furnace having an exterior casing including top, rear and sidewalls, flue means extending through said top wall, combustion chamber providing casing means mounted within said exterior casing in spaced relation to said walls, the upper portion of said exterior casing above the top of said combustion chamber casing means providing a blower compartment, room air inlet means communicating with said blower compartment through the front of said exterior casing, a flue connection tube communicating with said combustion casing means and extending upwardly from the top rear portion thereof through the rearward portion of said blower compartment, passage providing means extending between the upper portion of said flue tube and said flue means, a squirrel cage blower mounted in said blower compartment including a scroll casing having air intake means on its sides communicating with said blower compartment and a bottom air outlet for directing air over and around said combustion chamber casing, wherein the improvement consists essentially of: said scroll casing providing a rear wall wider than said flue connection tube and being shaped to provide passage defining extensions on each side of said connection tube which at least partially straddle it, said passage extensions terminating above said combustion casing means with a portion of said connection tube therebelow and said extensions being oriented to direct the air discharged therefrom around the portion of said connection tube therebelow and downwardly into the space between said combustion chamber casing means and the rear wall of said exterior casing.

Claim 13

A compact sealed combustion furnace adapted to be mounted within a closet or alcove of a mobile home, said furnace having an exterior casing including top, rear and sidewalls, flue means extending through said top wall, combustion chamber providing casing means mounted within said exterior casing in spaced relation to said walls, the upper portion of said exterior casing above the top of said combustion chamber casing means providing a blower compartment, room air inlet means communicating with said blower compartment through the front of said exterior casing, a flue connection tube communicating with said combustion casing means and extending upwardly from the top rear portion thereof through the rearward portion of said blower compartment, passage providing means extending between the upper portion of said flue tube and said flue means, a squirrel cage blower mounted in said blower compartment including a scroll casing having air intake means on its sides communicating with said blower compartment and a bottom air outlet for directing air over and around said combustion chamber casing, wherein the improvement consists essentially of: said scroll casing providing a rear wall wider than said flue connection tube and being shaped to provide passage defining extensions on each side of said connection tube which at least partially straddle it, said passage extensions terminating above said combustion casing means with a portion of said connection tube therebelow and said extensions being oriented to direct the air discharged therefrom around the portion of said connection tube therebelow and downwardly into the space between said combustion chamber casing means and the rear wall of said exterior casing.