Combination cooling and sealed fuel combustion heating means

Claim 1

IN AN AIR HEATER ADAPTED TO BE DISPOSED BETWEEN A PAIR OF ADJACENT STANDARDLY-SPACED STUDS IN A WALL OF A HABITABLE STRUCTURE AND THE LIKE, THE AIR HEATER INCLUDING A VERTICALLY ELONGATED CASING HAVING A WIDTH LESS THAN THE DISTANCE BETWEEN THE OPPOSING SURFACES OF SAID STUDS, PARTITION MEANS DISPOSED IN THE CASING DEFINING UPPER AND LOWER PORTIONS OF THE CASING, A FUEL BURNER DISPOSED IN THE LOWER PORTION OF THE CASING, A HOLLOW ELONGATED HEAT EXCHANGER DISPOSED IN THE CASING VERTICALLY ABOVE THE FUEL BURNER PRINCIPALLY IN THE CASING UPPER PORTION IN SPACED RELATION TO THE INNER SURFACES OF THE CASING WITH ITS LOWER END POSITIONED IN THE CASING LOWER PORTION TO RECEIVE HOT GASES FROM THE FUEL BURNER, A FLUE CONNECTED TO THE UPPER END OF THE HEAT EXCHANGER AND EXTENDING VERTICALLY FROM THE CASING WITHIN AN UPWARD EXTENSION OF THE CASING SIDES, THE IMPROVEMENT COMPRISING A SQUIRREL CAGE AIR BLOWER LOCATED SUBSTANTIALLY MIDWAY BETWEEN THE ENDS OF THE HEAT EXCHANGER EXTERIORLY THEREOF IN THE CASING UPPER PORTION FORWARDLY OF THE HEAT EXCHANGER AND HAVING A PAIR OF OUTLETS OPENING UPWARDLY AND DOWNWARDLY THEREFROM, THE BLOWER BEING OPERABLE FOR DRAWING AIR FROM THE EXTERIOR OF THE CASING AND FOR DISCHARGING AIR IN SUBSTANTIALLY EQUAL VOLUMES UPWARDLY AND DOWNWARDLY THEREFROM THROUGH SAID OUTLETS, AND BAFFLE MEANS IN THE CASING FOR DIRECTING AIR DISCHARGED FROM THE BLOWER MEANS AROUND AND ALONG THE HEAT EXCHANGER AND FROM THE CASING THROUGH AN UPPER FRONT PORTION THEREOF, SAID BAFFLE MEANS INCLUDING THE LOWER PORTION OF THE HEAT EXCHANGER BELOW THE BLOWER BEING REDUCED IN WIDTH TRANSVERSELY OF THE CASING RELATIVE TO THE REMAINDER OF THE LENGTH THEREOF AND BEING INCREASED IN DEPTH ALONG A LINE FORWARDLY AND REARWARDLY OF THE CASING RELATIVE TO THE REMAINDER OF THE LENGTH THEREOF.