Minimum Clearance To Combustible Enclosures; Alcove Enclosure - Napoleon Ascent Linear Série Manuel D'installation

10.3 minimum clearance to combustible enclosures

(Not required for BL36-1)
Center of
vent pipe
56"
(35.6cm)
(142.2cm)
ceiling
(min.)
46"
(116.8cm)*
27 1/2"
(69.9cm)
0" to bottom of the
appliance
note:
The vent shield is telescopic and
must be adjusted to shield the
full depth of the combustible wall
penetration.

10.4 alcove enclosure

RECESS OR
ALCOVE
AREA
ENCLOSURE
AREA
APPLIANCE
3" [76.2mm] minimum all sides for vertical venting.
Vent shield
Combustible
**
Top of
combustible
opening
(76.2mm)
14"
Top of
appliance
opening
Non-combustible
material
Combustible
material
(25.4mm)
* See "venting requirements" and "venting installation" sections.
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
6 1/2"
(16.5cm)
(76.2mm)
3"
1"
(25.4mm)
bottom
1"
** Clearances within the enclosure may be higher, see
"minimum framing dimensions" section.
finish framing
3"
0" if non-combustible finishing
top
is used such as brick and stone.
1"(25.4mm)
to vent sides
0" to back standoffs
0" to side standoffs
W415-3091 / B / 03.22.22
44.2A
EN
43