FRAMING
ROUGH OPENING
HEIGHT
WIDTH
41 ¼"
46 ¾"
(1048mm)
(1187mm)
(511mm)*
* When constructing the enclosure allow for fi nishing material thickness to maintain clearances.
** HORIZONTAL VENT SECTIONS: A minimum clearance of 2" (51mm) to the top and 1" (25mm) to the sides
and bottom of the vent pipe on all horizontal runs to combustibles is required. Horizontal vent sections within
enclosures require a minimum clearance of 6" (152mm) at the top of the vent pipe, see "MINIMUM CLEARANCE
TO COMBUSTIBLE ENCLOSURES" section. Use fi restop spacer W010-1777 (supplied).
** VERTICAL VENT SECTIONS: A minimum of 1" (25mm) all around the vent pipe on all vertical runs to
combustibles is required except for clearances in appliance enclosures. Vertical vent sections within enclosures
require a minimum clearance of 2" (51mm) around the vent pipe. Use fi restop spacer W500-0096 (not supplied).
OUTSIDE
CHASE
46 3/4" 1187mm
20 1/8"
511mm
46 3/4" 1187mm
MAINTAIN THESE MINIMUM CLEARANCES TO COMBUSTIBLES FROM
DEPTH
TO
TO CEILING
CEILING
FROM TOP
FROM
OF
BASE OF
APPLIANCE
APPLIANCE
OPENING
20 ¹/
"
56"
30 ¹¹/
8
(1422mm)
(780mm)
20 1/8"
511mm
INSIDE
CHASE
2" 51mm
APPLIANCE AND VENT SURFACES:
SIDE
TO
WALL
COMBUSTIBLE
FINISHING
ABOVE
APPLIANCE
"
2"
14"
16
(51mm)
(356mm)
52"
1320mm
46 3/4" 1187mm
BACK WALL OF CHASE / ENCLOSURE
(INCLUDING ANY FINISHING MATERIAL)
TOP OF
SIDES
REAR
VENT
AND
& SIDE
PIPE
BOTTOM
STAND-
OF VENT
OFFS
PIPE
2"
1"
0"
(51mm)**
(25mm)**
(0mm)
73 1/2"
1867mm
MIN
W415-1336 / 08.21.14
27
EN