F - Mech Eng,Light,Heat,Weapons – 24 – H
Patent
F - Mech Eng,Light,Heat,Weapons
24
H
F24H 3/06 (2006.01) F24D 15/02 (2006.01)
Patent
CA 2759926
A portable heater (A) adapted for use in a recreational enclosure or temporary work enclosure includes a housing (10) having an air inlet (40) on the lower front face. A gas supply (50) is at least partially enclosed by the housing which provides propane to the mouth (64) of a burner venturi (60) located within the housing. Air is drawn through the air inlet and also enters the mouth of the burner venturi. The air and gas are mixed thoroughly as they travel upwardly through the burner venturi. A chimney effect increases fresh air flow velocity into the burner venturi and allows the heater to operate at a reduced fuel gas pressure. Upon exiting the burner venturi, the air/gas mixture is to a plenum (72) and radiant surface (70) where combustion takes place.
Duross John D. Jr.
Haire Allan L.
Vandrak Brian S.
Enerco Group Inc.
Gowling Lafleur Henderson Llp
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