NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
25
Innovative Hearth Products
DRT63ST Direct-Vent Gas Fireplaces
Installation Instructions
900355-01, 07/2015
Horizontal terminations have been designed to perform in a wide range of weather condi
-
tions. Our terminations meet or exceed industry standards.
when selecting the locations of your horizontal terminations, do not place the termination
where water from eaves and adjoining rooflines may create a heavy flow of cascading
water onto the termination cap. If the cap must be placed where the possibility of cascad
-
ing water exists, it is the responsibility of the builder to direct the water away from the
termination cap by using gutters or other means.
Take care to carefully follow these installation instructions for the termination, including
the use of silicone caulking where required.
Figure 30 - Installing Square Horizontal Termination
Maximum extent of vent run
sections relative to exterior
surface of framing
Interior surface of finished wall
Last vent section
(If necessary, use
telescopic vent
section
SV8LA
.)
Siding
Stucco
_________
For wall thicknesses greater than
8-1/2” (216 mm), see
Table 8
.
Adaptor
SV8RCH
Horizontal Square Termination SV8HTS4
Venting Connection and Exterior Wall Recessing
Exterior Surface of Framing
Min. 5” (127 mm)
wall thickness
Max. 8-1/2” (216 mm)
wall thickness
Exterior Surface of Siding
5 to 8-1/2” (127−216 mm)
Max. 1-1/4” recess of
square termination into
exterior finishing material
Square Termination
SV8HTS4
~
Square Termination
SV8HTS4
~
Figure 31
It is important to maintain the required clear-
ances to combustibles: 1" (25 mm) at all sides
for all vertical runs; and 4" (102 mm) at the
top, 1" (25 mm) at sides, and 1" (25 mm) at
the bottom for all horizontal/inclined runs.
Use a carpenter’s level to measure from a
constant surface and adjust the support straps
as necessary.
J.
Assemble vent run to exterior wall.
If not previously measured, locate the center
of the vent at the exterior wall. Prepare an
opening as described in
Step B (previous
page)
. Assemble the vent system to point
where the terminus of the last section is within
5" (127 mm) to 8-1/2" (216 mm) inboard of the
exterior surface to which the termination is to
be attached, see
Figure 31 (below)
and
Table
8 (Page 26)
.
If the terminus of the last section is not within
this distance, use the
telescopic vent section
(SV8LA)
as the last vent section. For wall thick-
nesses greater than that shown in
Figure 31
,
refer to
Table 8 on Page 26
. This table lists
the additional venting components needed (in
addition to the termination and adaptor) for a
particular range of wall thicknesses.
k.
Attach termination adaptor.
Attach the adaptor (adaptor - SV8RCH - provided
with the termination) to the vent section or
telescoping vent section), or elbow as shown in
Figure 30
in the same manner as any SV vent
component (refer to
Step E
,
previous page
).
L.
Install Firestop/Spacer at exterior wall.
When using the square
termination, install
Secure Vent
®
Firestop/Spacer
(
SV8HF4
) over
the opening at the exterior side of the framing,
long side up, with the 4" spacer clearance at the
top as shown in
Figure 30
, and nail into place.
M. Install the Square Termination
(
SV8HTS4
)
.
For the last step, from outside the exterior
wall, slide the collars of the termination onto
the adaptor (the outer over the outer and the
inner inside the inner) until the termination
seats against the exterior wall surface to which
it will be attached. Orient the housing of the
termination with the arrow pointed upwards.
Secure the termination to the exterior wall.
The
horizontal termination must not be recessed
into the exterior wall or siding
by more than
the 1-1/4" (32 mm) as shown in
Figure 31
.
IMPORTANT: The vent termination is hot
while in operation and for a period of time
following the use of the fireplace. Young
children should be carefully supervised
when they are in the same area as a hot
termination.
13”
(330mm)
6-1/2”
(165mm)
16”
(406mm)
1”
(25mm)
Square
Termination
(SV8HTS4)
Note: Centerline of vent piping
is NOT the same as centerline
of framed opening.
Adaptor
SV8RCH
6” to 48” Vent Section
or Telescopic Vent Section
Base of Appliance
4”
(102 mm)
1”
(25 mm)
See
Page 16
for Minimum
Distance to base of Appliance
To help minimize water infiltration
it is recommended that the Fire-
stop/Spacer (SV8HF4) be installed
on the exterior side of the wall.
