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VENT INSTALLATION
INSTALLATION FOR VERTICAL TERMINATION
1. Determine the route your vertical venting will take. If ceiling joist,
roof rafters or other framing will obstruct the venting system, consider
an offset.
See Figure 27
to avoid cutting load bearing members.
NOTE: Pay special attention to these installation instructions for
required clearances (air space) to combustibles when passing
through ceilings, walls, roofs, enclosures, attic rafters, etc. Do
not pack air spaces with insulation. Also note maximum vertical
rise of the venting system and any maximum horizontal offset
limitations. Offsets must fall within the parameters shows in
Figure 10, page 16.
2. Set fireplace in desired location. Drop a line plumb down from the
ceiling to the position of the flue exit. Mark the center point where
the vent will penetrate the ceiling. Drill a small locating hole a this
point.
Drop a plumb line from the inside of the roof to the ceiling locat-
ing hole in the ceiling. Mark the center point where the vent will
penetrate the roof. Drill a small locating hole at this point.
2. Assemble the desired lengths of pipe and elbows necessary to reach
from the burner system flue up through the firestop. Be sure pipe and
elbow connections are fully twist-locked.
See Figure 13, page 17.
Figure 27 - Offset with Wall Strap and 45 Elbows
Roof
Flashing
Wall Strap
45° Elbows
Ceiling Firstop
Figure 28- If area above is a room, install firestop
above framed hole as shown
Figure 29 - If area above is not a room, install firestop
below framed hole as shown
Continued on next page
Firestop
Nails
Nails
Firestop
FLAT CEILING INSTALLATION
1. Cut a 9 " (
229
mm) square hole in the ceiling using the
page 17
using framing lumber the same size as the ceiling joist.
If the area above the ceiling is an insulated ceiling or a room, nail
firestop from the top side. This prevents loose insulation from
falling into the required clearance space.
See Figure 28.
Otherwise,
install firestop below the framed hole. The firestop should be
installed with no less than three nails per side.
See Figure 29.
3. Cut a hole in the roof using the locating hole as a center point.
(Cover any exposed open vent pipes before cutting hole in roof).
The
9" x 9"
Figure 12 on page 17.
locating hole as a center point The opening should be framed to 9
"
(
229
mm x
229
mm) inside dimensions as shown in
Figure 12,
(
229
mm x
229
mm) hole must be measured on
the horizontal. Actual length may be larger depending on the
pitch of the roof. There must be a 1" minimum clearance from
the vent pipe to combustible materials. (Insulation should be
considered a combustible material) Frame the opening as shown in
23
