NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.
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23
REqUIREd HORIZONTAL VENTINg COMPONENTS
BASEd ON ExTERIOR WALL THICkNESS
Ext. Wall Thickness
inches (mm)
Required Horizontal
Vent Components
6 to 9-1/4
(152 to 235)
• Termination Kit
10-3/4 to 14
(273 to 356)
• Termination Kit
• 6-inch Vent Section
16-3/4 to 20
(426 to 508)
• Termination Kit
• 12-inch Vent Section
11-3/4 to 20
(299 to 508)
• Termination Kit
• Telescopic Vent Section
Figure 23-3
Figure 23-2: Horizontal Termination Venting Connection and Exterior Wall Recessing
Siding
Stucco
Max. 1-1/4" Recess of
Horizontal Termination into
Exterior Finishing Material
Exterior Surface
of Framing
6" to 9-1/4"
(152 to 235 mm)**
Exterior Surface of Siding
Interior Surface of
Finished Wall
Max. 9-1/4" (235 mm)
Wall Thickness**
Typical Horizontal
Termination
Maximum Extent of
Vent Run Section
Relative to Exterior
Surface of Framing
Last Vent Section
(Use Telescopic
Vent Section,
if necessary.)
Termination
Adapter
Horizontal Termination Venting Connection and Exterior Wall Recessing
*Use silicone caulk to seal the top and sides of the termination,
up to the underlayment, stucco, or masonry wall surface.
Caulk*
Typical Horizontal
Termination
Caulk*
**For walls thicker than 9-1/4", see Figure 23-3.
LENNOX HEARTH PRODUCTS • RHAPSODY™ LINEAR DIRECT-VENT GAS FIREPLACES (MODEL RHAP54N) • INSTALLATION INSTRUCTIONS
INSTALLINg HORIZONTAL VENT
TERMINATION
1. Assemble vent run to exterior wall.
a) If not already done, prepare an opening as
described in Figure 23-1.
b) Assemble the vent system to the point
where the end of the last section is within
5 to 8-1/2 inches (127 to 216 mm) inboard
of the exterior surface to which the termina-
tion will be attached. See Figure 23-1 and
23-3.
If the end of the last section is not within this
distance, use the telescopic vent section as
the last vent section (see Page 14).
Note: For walls thicker than those shown in
Figure 23-2, see Figure 23-3, which lists addi-
tional venting components needed (in addition
to the termination and adaptor) for a particular
range of wall thicknesses.
2. Attach termination adaptor.
See Figure 23-2. Attach the termination
adaptor (provided with the termination) to
the vent section (or telescoping vent section
or elbow) in the same manner as the other
vent components (see "Attaching Secure Vent
Components" on Page 13).
Note: If blown insulation is to be
used, the Through-Wall Shield kit
(H5816) MUST be installed.
3. Install firestop/spacer
at exterior wall.
See Figure 23-1. Install the
firestop/spacer
over the opening at the exterior side of the
framing, long side up, with the 3-inch spacer
clearance at the top, and nail into place. (The
firestop/spacer also may be installed over the
opening at the interior side of framing).
4. Install horizontal termination.
a) From outside the exterior wall, slide the
horizontal termination collars onto the
termination adaptor (the outer termina-
tion collar INSIDE the outer diameter of the
adapter, and the inner termination collar
OUTSIDE the inner diameter of the adapter)
until the termination seats against the exte-
rior wall surface to which it will be attached.
b) Orient the termination housing with the
arrow pointing UP (see Figure 23-2).
c) Secure the termination to the exterior wall.
Figure 23-1: Installing Horizontal Termination
Firestop/Spacer (SV4.5HF) shown
on the exterior side of the wall. It
may also be installed on the
interior side.
Typical
Termination
Shown
7"
(178)
5-1/8"
(130 mm)
12-1/8"
(308 mm)
Note: Centerline of Vent Piping is
NOT the Same as the Centerline of
the Frame Opening.
6 to 48 inch Vent Section,
Telescopic vent section,
Elbow or Appliance Collar
Base of Appliance
3"
(76 mm)
1"
(25.4 mm)
Adapter
SV4.5RCH
10-1/2"
(267 mm)
See Page 8 for min. height from appliance
base to vertical centerline of vent pipe.
NOTE: The horizontal termination must not
be recessed into the exterior wall or siding
by more than 1-1/4" (32 mm), as shown in
Figure 23-2.
CAUTION: The vent termination is HOT
while in operation and for a period of time
following fireplace use.
To prevent con-
tact with hot surfaces, use a Termination
Guard, which can be purchased at your
local dealer. (See “Installation Accesso-
ries” in this manual for catalog numbers.)
Use the table in Figure 23-3 when selecting
venting components for a particular range of
exterior wall thicknesses.
HORIZONTAL TERMINATION SySTEMS
(CONTINUEd)
