Installation
900414-00 12/2015
Innovative Hearth Products
MHD 35/40 Series Direct-Vent Gas Fireplaces
32
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” Vent Section,
Telescopic vent section,
Elbow or Appliance Collar
Base of Appliance
3”
(76 mm)
1”
(25.4 mm)
Adaptor
SV4.5RCH
10-1/2”
(267 mm)
See
Table 10
for the minimum distance
to the base of the fireplace.
*Recommended IHP termination kit: H1968
**With termination kit only, 6” to 9-1/4”
*
To help minimize water infiltration it
is recommended that the Firestop/
Spacer (SV4.5HF) be installed on
the exterior side of the wall.
**
Figure 30 - Installing the Horizontal Termination
NOTE:
To help minimize water infiltration install the firestop/spacer (SV4.5HF) on the exterior side of the wall. The
firestop may be caulked with mill base caulk (such as 10K81) or high-temperature silicone.
Figure 31 - Venting Connection and Exterior Wall Recessing of the Horizontal Compact Termination 94L10
* Use silicone caulking to seal the
top and sides of the termination,
up to the underlayment, stucco,
or masonry wall surface.
Adaptor
SV4.5RCH
**For thicknesses greater than
9-1/4" (235mm), see
Table 20
.
SV4.5HT-2
Square Termination
Maximum Wall Thickness
9-1/4" (235 mm)**
Exterior Surface of Siding
Exterior Surface of
Framing
6" to 9-1/4"
(152 to 235 mm)**
1-1/4" Maximum Recess of
the Square Termination into
Exterior Finishing Material
SV4.5HT-2
Square Termination
*Caulk
*Caulk
Stucco
Siding
Interior Surface of
Finished Wall
Last Vent Section. Use
Telescopic Vent Section
(SV4.5LA), If Necessary
Maximum Extent of Vent
Run Sections Relative
to Exterior Surface of
Framing
