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Page 24
INSTALLATION
Framing
This fireplace can be elevated off the floor provided that the
fireplace is properly supported by framing materials and the
ceiling clearances are maintained.
Fireplace framing can be built before or after the fireplace is set
in place. Framing should be positioned to accommodate wall
covering and fireplace facing material. The fireplace framing
should be constructed of 2 x 4 lumber. Refer to
Figure 21
for
minimum framing dimensions.
NotICE:
Measure fireplace dimensions and verify framing
methods, and wall covering details before framing construction
begins.
NotICE:
Framing dimension A includes a 17-inch clearance
for framing standoffs on fireplace. After installing fireplace into
framing, the non-combustible board must cover the 17-inch
opening above the fireplace.
NotICE:
Framing depth dimension C is appropriate for 1/2-
inch drywall or exterior sheathing. Adjust accordingly if 3/4-inch
material is used, or for flush interior wall applications.
A
C
B
DVLL48SP
DVLL48SP
WITH OUTDOOR kIT
(Dimensions in inches)
A
51-3/4
51-3/4
B
68
68
C
19-1/2
21-1/4
Figure 21
Construction of a Fireplace Chase
A chase is a vertical box-like structure built to enclose the gas
fireplace and/or its vent system. In cooler climates the vent
should be enclosed inside the chase.
NotICE:
Requirements for ceiling and wall shield firestops and
construction of the chase may vary with the type of building.
These instructions are not substitutes for the requirements of
local building codes. Check local building codes to determine the
requirements to these steps.
To prevent cold-air draft problems construct the chase in the
manner of all outside walls. The chase should not break the
home’s outside envelope. Insulate the walls, ceiling, base
plate and cantilever floor of the chase and install vapor and air
infiltration barriers per code for the rest of the home.
Additionally, in regions where cold air infiltration may be an
issue, the inside surfaces may be sheet rocked and taped (or
an equivalent method may be used) to achieve maximum air
tightness.
To further prevent drafts, the wall shield and ceiling firestops
should be caulked with caulk rated for a minimum of 300°F
continuous exposure rating to seal gaps. Gas line holes and
other openings should be caulked or stuffed with unfaced
insulation. If the fireplace is being installed on a cement surface,
a layer of plywood may be placed underneath to prevent
conducting cold up into the room.
Framing and Finishing
1. Choose fireplace location. See pages 14 - 15.
2. Frame in fireplace with a header across the top. It is
important to allow for finished face when setting the depth of
the fireplace.
3. Secure the four framing brackets and hand bend them into a
V shape as shown in
Figure 22.
Secure with #10 x 1/2 inch
hex-head screws.
4. Locate the nailing flanges on the sides of the fireplace (two
each side).
See Figure 22.
FLUSH
MOUNTING
1/2” SET BACK
MOUNTING
3/4” SET BACK
MOUNTING
INTERIOR WALL STAND-OFFS
Figure 22
