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页码 52
9
Radiance Direct Vent Gas Heater
20012697
Vent Termination Clearances
Your stove is approved to be vented either through the 
side wall, or vertical through the roof.
• 
CFM Corporation does not require any opening 
for inspection of vent pipe.
• 
Only CFM Corporation, Simpson DuraVent and 
Selkirk Corporation venting components specifi-
cally approved and labelled for this stove may be 
used.
• 
Minimum clearances between vent pipes and 
combustible materials is one (1”) inch (25 mm), 
except where stated otherwise.
• 
Venting terminals shall not be recessed into a wall or 
siding.
• 
Horizontal venting must be installed on a level plane 
without an inclining or declining slope.
There must not be any obstruction such as bushes, 
garden sheds, fences, decks or utility buildings within 
24” from the front of the termination hood.
Do not locate termination hood where excessive snow 
or ice build up may occur. Be sure to check vent termi-
nation area after snow falls, and clear to prevent ac-
cidental blockage of venting system. When using snow 
blowers, make sure snow is not directed towards vent 
termination area.
Location of Vent Termination 
It is imperative the vent termination be located observ-
ing the minimum clearances as shown on this page.
When planning the installation, consider the location 
of the vent terminal and clearances. Some of the most 
common clearances to keep in mind are shown in Figure 
11. 
Important: All vent clearances must be maintained. 
Check your vent termination clearances against 
Figures 11 through 13.
The vent should be placed so that people cannot be  
burned by accidentally touching the vent surfaces when 
the stove is operating.
The vent termination should be located where it cannot 
be damaged by such things as automobile doors, lawn 
mowers or snowblowers and it should be located away 
from areas where it could become blocked by snow, 
etc.
Some considerations are:
   Obstructions or impediments to venting.
   Nearby combustible materials that could come into 
contact with combustion exhaust gases.
   Other nearby openings {within 12” (305 mm)} 
through which exhaust gas could reenter the build-
ing.
   All vegetation within 3’ (76 mm) that may interfere 
with the draft.
Other factors that influence where the installation will 
be sited include the location of outside walls, where 
additional heat may be desired in the home, where the 
family members gather most regularly, and perhaps 
most importantly, the distance limitations of the venting 
system.
IMPORTANT
•   The horizontal termination must not be recessed 
into the exterior wall or siding.
•   Horizontal vent runs must be level toward the 
vent termination.
•   Clearances around the vent termination must be 
maintained.
 
For installations using Simpson DuraVent pipe, 
parallel installations with minimum wall clearance 
have restricted access for connecting the Hori-
zontal Vent Cap straps to the vent pipe. See the 
maker’s instructions for recommended installa-
tion procedures.