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900573-00N/C
7
Figure 6 - Lineal Gain
Hemmed
End
8" Stainless
Inner Pipe
12
3
/
8
" Galvanized
Outer Pipe
Figure 5 - Outside Air Kit
Secure to Collars with Metal Tape, Screws
or Straps (Min. of 1/4" x 20" in size)
Air Inlet
Location
Must Allow
For Bushes
or Snow
Vent Hood
Required for
Wall Installation
Air Inlet
Eyebrow
Vented Crawl Space
(Check Local Codes
Before Installing in a
Vented Crawl Space)
VENTING INSTALLATION
CHIMNEY PIPE
WARNING: Label part number 900599-01 must
be applied by the installer to all chimney pipe
sections but is not required on sections that will
be visible after the installation is complete. Label
must wrap around the circumference of the pipe.
See accessories, page 19 for Kit F2659.
The IHP chimney system consists of 12", 18", 24", 36" and 48" snap-
lock, double-wall pipe segments, planned for maximum adaptability to
individual site requirements. Actual lengths gained after fitting overlaps
must be taken into consideration (lineal gain) and are given in the lineal
gain chart (see Figure 6). Lineal gain is the actual measurable length of
a part after two or more parts are connected. For Canada, use chimney
parts designated "HT".
ASSEMBLY AND INSTALLATION OF DOUBLE WALL CHIMNEY
SYSTEM
Each double wall chimney section consists of a galvanized outer pipe,
a stainless steel inner flue pipe and a wire spacer. The pipe sections
must be assembled independently as the chimney is installed.
When connecting chimney directly to the fireplace, 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 fireplace starter. The wire will as-
sure the proper spacing between the inner and outer pipe sections.
Continue to assemble chimney sections as outlined, making sure
that both the inner and outer pipe sections are locked together. When
installing double wall snap-lock chimney together, it is important to
assure the joint between the chimney sections 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 (exception - see Figure 9, page 9).
The height of a vertical chimney pipe supported
ONLY
by the
fireplace, must not exceed 20 feet. Chimney heights above 20 feet
must be supported.
WARNING: The opening in collar around chimney
at top of fireplace must not be obstructed. Never use
blown insulation to fill chimney enclosure.
LINEAL GAIN
CAT. NO. PART NO.
DESCRIPTION
GAIN
36"
Fireplace
40"
F0895
F0881
12-8DM
12-8HT
Pipe Section
10
5
/
8
"
F0896
F0882
18-8DM
18-8HT
Pipe Section
16
5
/
8
"
F0897
F0883
24-8DM
24-8HT
Pipe Section
23
5
/
8
"
F0898
F0884
36-8DM
36-8HT
Pipe Section
34
5
/
8
"
F0899
F0885
48-8DM
48-8HT
Pipe Section
46
5
/
8
"
F0916
RT-8DM
Round Termination
6
7
/
8
"*
F0918
RLT-8DM
Round Termination
7
1
/
2
"*
F0917
RTT-8DM
Round Termination with
Slip Section
6
7
/
8
" to
23
1
/
8
"*
F0919
RLTT-8DM
Round Termination with
Slip Section
7
1
/
2
" to
21
1
/
4
"*
F0920
ET-8DM
Square Chase-Top
12"*
F0922
ETO-8DM
Square Chase-Top with
Mesh
12"*
F0921
ETL-8DM
Square Chase-Top with
Slip Section
7" to 15"*
F0923
ETLO-8DM
Square Chase-Top with
Mesh & Slip Section
12" to
25
1
/
2
"*
* The lineal gain for the terminations is measured to the flue gas
outlet height.