Download Submittal - Space Ray

2)
MINIMUM CLEARANCES TO COMBUSTIBLES
Minimum clearances to combustibles shall be measured from the outer surfaces as shown in the following diagram:
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MINIMUM CLEARANCES TO COMBUSTIBLES
Model No.
ETS 40, 50
ETS 60, 75
ETS/ETU 80, 90
ETS/ETU 100
ETS/ETU 110, 120, 125, 130
ETS/ETU 140, 150
ETS/ETU 160, 175
ETS/ETU 180, 200
ETS/ETU 225, 250
Sides
24”
24”
26”
28”
32”
36”
42”
44”
56”
Mounted Horizontally
Ceiling*
Below
6”
40”
6”
60”
6”
66”
6”
76” **
6”
82” **
6”
87” **
6”
93” **
6”
106” **
6”
112” **
Ends
15”
15”
15”
15”
20”
20”
20”
20”
20”
Angle Mounted at
45º
45º Front 45º Rear
40”
12”
52”
12”
52”
12”
60”
12”
66”
12”
70”
12”
77”
12”
84”
12”
90”
18”
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 When used indirect vented, the clearance must be: 12” for ETS/ETU40-75 and 18” for ETS/ETU80-250.
If optional corner reflectors are not used, the clearance must be 18”.
 Minimum Clearance BELOW reduces to 72” once you are 20 feet downstream from the control box.
NOTE: The clearances specified above must be maintained to combustibles and other materials that may be damaged by
temperatures 90ºF 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.
SUBMITTAL ♦ ETS/ETU
3
Jul-13