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126610-01A
8
Figure 13 - Pipe Connection
Hemmed
End
12
3
/
8
"
Galvanized
Outer Pipe
8'' Stainless
Inner Pipe
Lanced Side
Up
VENTING INSTALLATION
Continued
LINEAL GAIN
PART NO.
DESCRIPTION
GAIN
WRT35STWSI See-Through
54"
12-8DM
Flue Pipe
10
5
/
8
"
18-8DM
Flue Pipe
16
5
/
8
"
24-8DM
Flue Pipe
23
5
/
8
"
36-8DM
Flue Pipe
34
5
/
8
"
48-8DM
Flue Pipe
46
5
/
8
"
RTL-8DM
RTTL-8DM
Round Top
Termination
6"
ETL-8M
ETO-8DM
ETLO-8DM
Econo-Top
Termination
1" to 12"
FIRESTOP SPACERS FS-8DM
Firestop spacers are required at each point where the chimney pen-
etrates a floor or ceiling joist space. Their purpose is to establish
and maintain the required clearance between the chimney and the
combustible materials.
When penetrating a floor or ceiling at an angle, use firestop spacer
number FS-8DM (see Replacement parts, page15 and Accessories,
page 16).
When the pipe passes through a framed opening into a living space
above, the firestop must be placed onto the ceiling from below as
shown in Figure 14, page 8. When the pipe passes through a framed
opening into an attic space above, the firestop must be placed on the
CHIMNEY PIPE
The IHP chimney system is a snap-lock, double-wall pipe. It consists
of a stainless steel inner flue pipe(s), a galvanized outer pipe and a
wire spacer. Each section of pipe comes in lengths of 12", 18", 36"
and 48". The actual lineal gain for each is measured after each section
is fully connected. Lineal gain is the actual measurable length of a
part after two or more parts are connected.
PIPE INSTALLATION
The pipe sections must be assembled independently as the chimney is
installed. When connecting chimney directly to the firebox, the inner
flue pipe section must be installed first with the lanced side up. The
outer pipe section can then be installed over the flue pipe section
with the hemmed end up. Press down on each pipe section until the
lances securely engage the hem on the firebox starter. The wire will
assure the proper spacing between the inner and outer pipe sections.
Continue to assemble chimney sections as outlined above, making
sure that both the inner and outer pipe sections are locked together
(see Figure 13). When installing double wall snap-lock chimney
together, it is important to assure the joint between the chimney sec-
tions is locked. Check by pulling chimney upward after locking. The
chimney will not come apart if properly locked. It is not necessary
to add screws to keep the chimney together.
attic floor as shown in Figure 15, page 8.
WARNING: The opening in collar around chimney
at top of fireplace must not be obstructed. Never use
Figure 14 - Firestop Spacer with Living Space Above Ceiling
Figure 15 - Firestop Spacer with Attic Space Above Ceiling
Existing
Ceiling
Frame
Firestop
Spacer
Screws or
Staples
(Min. of 8)
Firestop
Spacer
Screws or Staples
(Min. of 8)
Existing
Ceiling
Frame