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fi nish framing
EN
9.4
minimum clearance to combustible enclosures
Center of
vent pipe
60"
(152.4cm)
ceiling
(min.)
48"
(121.9cm)*
27 1/2"
(69.9cm)
0" to bottom of the
note:
The vent shield is telescopic and must
be adjusted to shield the full depth of the
combustible wall penetration.
9.5
alcove enclosure
RECESS OR
ALCOVE
AREA
ENCLOSURE
AREA
APPLIANCE
46
W415-3036 / 05.07.21
3" [76.2mm] minimum all sides for vertical venting.
Vent shield
Top of
combustible
opening
14"
Top of
(35.6cm)
appliance
opening
Non-combustible
material
Combustible
material
appliance
note:
Recesses or alcoves above the appliance must be made with non-combustible
material and regular minimum clearances, as defined for combustible materials,
must still be applied.
The recesses or alcoves can be made as deep as desired provided the
minimum clearances to combustibles are maintained.
The minimum enclosure volume must be increased by no less than the volume
of the recess. This adjustment can be made by increasing any or all of the
height, width and depth of the enclosure.
Non-combustible
Combustible
8"
**
(20.3cm)
(76.2mm)
3"
(76.2mm)
(25.4mm)
bottom
1"
(25.4mm)
* See "venting requirements" and "venting installation" sections.
** Clearances within the enclosure may be higher, see
"minimum framing dimensions" section.
3"
0" if non-combustible finishing
top
is used such as brick and stone.
1"(25.4mm)
to vent sides
1"
0" to back standoffs
0" to side standoffs
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