Abstract: A gas burner is provided with a shaped part at its upstream end for the admission of primary air and gas, the shaped part 24 being monolithic with the burner and having openings 34, 36 for the admission of primary air from above, and is downwardly open for admission of air from below, the part receiving a primary air shutter 52 which is generally cylindrical to fit in telescoping relation upon the burner end part 24, the shutter having a lower slot 56 to accommodate the seam 18 of the burner, and the shaped part having a downwardly open saddle 38 adapting the burner upstream end to be seated on a gas spud.

Abstract: The invention provides an arrangement for shielding non-metallic motor leads from damage during servicing within the cabinet of a forced air furnace having a double inlet centrifugal blower housing containing a fan wheel and a direct drive motor which is resiliently mounted to the blower housing. The arrangement includes a channel-shaped raceway and a junction box which are aligned on the blower housing support plate in an arrangement permitting the raceway to be secured to both the junction box and the side of the blower housing in a way which does not interfere with the resilient mounting of the motor within the housing. The arrangement is also adapted to accommodate protecting the motor and capacitor leads of an external capacitor type motor.