RSG Heater Series Submittal

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MINIMUM CLEARANCES TO COMBUSTIBLES

Minimum clearances to combustibles shall be

measured from the outer surfaces as shown in the

following diagram. For reduced clearances below the

heater, use the Deector Kit (Part No. 43504010),

described in Section 5, and maintain the minimum

clearances specied in the notes below. Follow the

instructions packaged with the kit for installation.

Certain materials or objects,

when stored under the heater, will be subjected

to radiant heat and could be seriously damaged.

Observe the Minimum Clearances to Combustibles

listed in the manual and on the heater at all times.

MINIMUM CLEARANCES TO COMBUSTIBLES

Mounted Horizontally Angle Mounted at 45°

Model No. Sides Ceiling

Below

Ends 45° Front 45° Rear

RSG 25 8" 4" 41" * 8" 30" 4"

RSG 35, 45 12" 4" 57" ** 8" 40" 4"

The clearance is 12" when installed in an UNVENTED conguration in industrial and commercial installations.

IN CANADA, clearances below the heater are: RSG 25 - 36" (27" with deector); RSG 35/45 - 48" (36" with deector)

* The clearance is 33" with deector.

** The clearance is 42" with deector / 30" side clearance with deector.

NOTE:

1. The clearances specied above must be maintained to combustibles and other materials that may be damaged by temperatures

90°F above ambient temperature. Clearances to combustibles are posted on the control box. In areas used for storage of

combustible materials where they may be stacked below the heater, NFPA54 requires that the installer must post signs that will

“specify the maximum permissible stacking height to maintain the required clearances from the heater to combustibles.” Sterling

recommends posting these signs adjacent to the heater thermostat or other suitable location that will provide enhanced visibility.

2. The stated clearance to combustibles represents a surface temperature of 90°F (32°C) above room temperature. Building

materials with a low heat tolerance (such as plastics, vinyl siding, canvas, tri-ply, etc.) may be subject to degradation at lower

temperatures. It is the installer’s responsibility to assure that adjacent materials are protected from degradation.

STERLING “RSG” SERIES

INFRARED RADIANT TUBE HEATER