Napoleon GD34-1NT Installation And Operating Instructions Manual page 19

It is best to frame your fi replace after it is positioned and the
vent system is installed. Frame to local building codes.
Note: In order to avoid the possibility of exposed insulation
or vapour barrier coming in contact with the fi replace body,
it is recommended that the walls of the fi replace enclosure
be "fi nished" (ie: drywall/sheetrock), as you would fi nish any
other outside wall of a home. This will ensure that clearance
to combustibles is maintained within the cavity.
To install the fi replace face fl ush with the fi nished wall, position
the framework to accommodate the thickness of the fi nished
wall. It is not necessary to install a hearth extension with this
fi replace system.
When roughing in the fireplace, raise the fireplace to
accommodate for the thickness of the fi nished fl oor materials,
i.e. tile, carpeting, hard wood, which if not planned for will
interfere with the opening of the lower access door and the
installation of many decorative fl ashing accessories.
FIGURE 37 a-d
33 / "
1
4
MIN.
Combustion protrusions such as mantels and shelves may occur at or after a
minimum distance of 2" away from the side of the fi replace. Thereafter, the
depth of any protrusions must be equal to or less than the distance from the side
of the fi replace up to a depth of 6", after which no greater clearance than 6" is
required. This can be considered a side wall with no length boundary.
BGD34-1 FRAMING
MINIMUM FRAMING DIMENSIONS
WARNING
!
Do not build into this area - it must be left clear to provide adequate
clearance for the vent. In this 14 1/2" wide area centred along the
front of the fireplace, no combustibles are allowed.
ENCLOSURE
TOP
FINISHING
MATERIAL
49 3 / "
8
13 1 / "
4
OUTSIDE
CHASE
34 / "
3
4
Minimum clearance to combustible construction from fi replace
and vent surfaces:
Combustible Framing:
- 0" to stand-offs
- 1" to bottom and sides of the vent pipe*
- 2" to top of the vent pipe*
Combustible Finishing:
- 0" to rear
- 0" to front face sides and top
- 13" recessed depth
- 49 3/8" to enclosure top from base of the unit
- 66" to ceiling from base of the unit
*HORIZONTAL VENT SECTIONS - A minimum clearance of 1"
at the bottom and sides and 2" at the top of the vent pipe in all
horizontal runs to combustibles is required. Use fi restop spacer
W010-1774 (supplied).
* VERTICAL VENT SECTIONS - A minimum of 1" all around
the vent pipe on all vertical runs to combustibles is required
except for clearances in fi replace enclosures. See "Minimum
Enclosure Clearances" section. Use fi restop spacer W500-0096
(not supplied).
** The fi rst 5 1/8" of fi nishing material above the GD34-1 must be
non-combustible. The steel header supplied must be used.
14 1 / "
2
3 1 / "
2
MINIMUM
MAXIMUM
HEADER
1 1 / "
2
MAXIMUM
GAS INLET
33 1 / "
4
LOCATION
2 5 / "
8
5 / "
3
4
34 3 / "
4
13 / "
1 13 / "
1
4
4
19
INSIDE
CHASE
2"
34 / "
3 4"
4
SIDE
2"
PROTRUSION
WALL
4"
6"
W415-0663 / A / 01.07.08