FMI Peninsula VDVF36, Owner'S Operation And Installation Manual

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Venting with Two 90° Elbows
Vertical (V) Horizontal (H
1
) +
Horizontal (H
2
)
5' min. 2' max.
6' min. 4' max.
7' min. 6' max.
8' min. 8' max.
20' max. 8' max.
Figure 29 - Vertical Rigid Venting
Configuration Using Two 90° Elbows
with Two Horizontal Runs
Venting with One 90° Elbow
Vertical (V) Horizontal (H)
5' min. 2' max.
6' min. 4' max.
7' min. 6' max.
8' min. 8' max.
20' max. 8' max.
Figure 30 - Vertical Rigid Venting
Configuration Using One 90° Elbow
VENTING INSTALLATION
Continued
Vertical Termination Configurations
Figures 29 through 32 show four different
configurations for vertical termination. These
minimum vertical rises are based on horizon -
tal runs with a minimum of 1/4" upwards pitch
per foot and do not reflect constraints on a
vertical system with 45° or greater offset.
45° Starter Elbow
Note: Install restrictor
into inner collar of
fireplace as shown.
45° Starter Elbow
Note: Install restrictor
into inner collar of
fireplace as shown.
Figure 27 - Cathedral Ceiling Support
Box Installation
Cut hole 1/8"
larger than
support box when
projected onto roofline
2" minimum below
finished ceiling
Cathedral
ceiling
support box
Level
Cathedral Ceiling Installation
1. Remove shingles or other roof covering as
necessary to cut rectangular hole for sup-
port box. Mark outline of cathedral ceiling
support box on roof sheathing using the
locating hole as a center point.
2. Cut hole 1/8" larger than the support box
outline (see Figure 27).
3. Lower support box through hole in roof
until bottom of box extends at least 2"
below ceiling (see Figure 27). Align sup -
port box vertically and horizontally using
a level. Temporarily tack support box in
place through inside walls and into roof
sheathing.
4. Using tin snips, cut support box from top
corners down to roofline and fold result -
ing flaps over roof sheathing (see Figure
28). Apply a bead of non-hardening mas -
tic around top edges of support box to
make a seal between box and roof. Nail
in place with roofing nails. Remove any
combustible material that might be inside
of support box.
5. Complete cathedral ceiling installation by
following the same procedures outlined in
steps 2 through 7 for Flat Ceiling Installa-
tion, page 18 .
Non-hardening
Mastic under all
edges of support
box before nailing
Figure 28 - Installed Cathedral Ceiling
Support Box