Download Submittal - Space Ray

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MINIMUM CLEARANCES TO COMBUSTIBLES
MINIMUM CLEARANCES TO COMBUSTIBLES
Model No.
LTS 40, 50
LTS 60, 75
LTS 80, 90
LTS 100
LTS 110, 120, 125, 130
LTS 140, 150
LTS 160, 175
LTS 180, 200
LTS 225, 250
Mounted Horizontally
Angle Mounted at 45º
Sides
Ceiling*
Below
Ends
45º Front
45º Rear
24”
24”
26”
28”
32”
36”
42”
44”
56”
6”
6”
6”
6”
6”
6”
6”
6”
6”
40”
60”
66”
76” **
82” **
87” **
93” **
106” **
112” **
15”
15”
15”
15”
20”
20”
20”
20”
20”
40”
52”
52”
60”
66”
70”
77”
84”
90”
12”
12”
12”
12”
12”
12”
12”
12”
18”
* When used indirect vented, minimum clearance for CEILING must be 12” for LTS 40-75 and 18” for
LTS80-250. If optional corner and U-bend reflectors are not used, the clearance must be 18”.
** Maximum clearance below reduces to 72” once you are 20 ft. downstream from the control box.
▲ WARNING: 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.
NOTE:
1. The clearances as specified above must be maintained to combustibles and other materials that may be
damaged by temperature of 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”. Space-Ray 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.
Submittal♦LTS
Jul-13