1. GENERAL INSTALLATION INFORMATION
AND REQUIREMENTS
• The required minimum clearances to combustible
surfaces are illustrated in Figure 2 and Table 3. As
shown on Figure 2, the front of the heater is installed
at the minimum required clearance to combustible
surfaces and toward open space, and then the other
sides must have a minimum clearance of 16 inches
(406mm) to combustible surfaces.
30"(761mm)
Minimum
20"(508mm)
Minimum
20"(508mm)
Minimum
BTU/HR. RATING
MODEL
NUMBER
NATURAL
OHIR18LV
–
OHIR22NV
22,000
OHIR30LV
–
OHIR33NV
33,000
OHIR18LV
–
OHIR22NV
22,000
OHIR30LV
–
OHIR33NV
33,000
GAS FIRED INFRA-RED WORKSHOP HEATER
HEATER INSTALLATION
Figure 2. Installation Clearances to Combustible Surfaces
Table 3. Installation, Ventilation and Mounting Information
MOUNTING
GAS
POSITION
PROPANE
18,000
–
30,000
–
18,000
–
30,000
–
The stated Clearance to combustibles represents
a surface temperature of 90°F (32°C) above room
temperature. Building Materials with low heat tolerance
(such as plastic, 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.
16"(406mm)
Minimum
CLEARANCES TO COMBUSTIBLE SURFACES
TOP
30
30" (761mm)
o
30
30" (761mm)
o
30
30" (761mm)
o
30
30" (761mm)
o
0
30" (761mm)
o
0
30" (761mm)
o
0
30" (761mm)
o
0
30" (761mm)
o
20"(508mm)
Minimum
SIDES
BACK
24" (610mm) 20" (508mm) 48" (1219mm)
24" (610mm) 20" (508mm) 48" (1219mm)
24" (610mm) 20" (508mm) 48" (1219mm)
24" (610mm) 20" (508mm) 48" (1219mm)
24" (610mm) 16" (406mm) 48" (1219mm)
24" (610mm) 16" (406mm) 48" (1219mm)
24" (610mm) 16" (406mm) 48" (1219mm)
24" (610mm) 16" (406mm) 48" (1219mm)
BELOW
5