
W415-1706 / A / 07.13.17
EN
40
finish framing
10.3 minimum clearance to combustible enclosures
Vent Sections
When passing through a wall, use firestop spacer W010-3440 (supplied).
When passing through a ceiling, use firestop spacer W500-0096 (not supplied).
note:
Top of
appliance
opening
0” if non-combustible finishing
is used such as brick and stone.
Combustible
material
Non-combustible
material
Combustible
Non-combustible
56”
(142.2cm)
ceiling
(min.)
27 1/2”
(69.9cm)
1”
(25.4mm)
46”
(116.8cm)*
6 1/2”
(16.5cm)
3”
(76.2mm)
top
1”
(25.4mm)
bottom
14”
(35.6cm)
Vent shield
Top of
combustible
opening
Center of
vent pipe
The vent shield is telescopic and
must be adjusted to shield the
full depth of the combustible wall
penetration.
note:
** Clearances within the enclosure may be higher, see
“minimum framing dimensions” section.
(Not required for CBL36-1)
**
0” to back standoffs
0” to side standoffs
0” to bottom of the
appliance
1”(25.4mm)
to vent sides
* See “venting requirements” and “venting installation” sections.