www.desatech.com
118116-01D
6
Figure 6 - Lineal Gain
LINEAL GAIN
PART NO.
DESCRIPTION
GAIN
48" Plantation
Fireplace
66
1
/
2
"
12-12DM
12-12HT
Pipe Section
10
5
/
8
"
18-12DM
18-12HT
Pipe Section
16
5
/
8
"
24-12DM
24-12HT
Pipe Section
23
5
/
8
"
36-12DM
36-12HT
Pipe Section
34
5
/
8
"
48-12DM
48-12HT
Pipe Section
46
5
/
8
"
RLT-12D
RLT-12HT
Round
Termination
7
3
/
4
"*
STL-12D
Square Chase Top
with Slip Section
7" to 15"*
* The lineal gain for the terminations is mea-
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Hemmed
End
12
3
/
8
"
Stainless
Inner Pipe
*DOYDQL]HG
Outer Pipe
ASSEMBLY AND INSTALLATION OF
DOUBLE WALL CHIMNEY SYSTEM
Each double wall chimney section consists of a
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pipe and a wire spacer. The pipe sections must
be assembled independently as the chimney is
installed. When connecting chimney directly to
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WKHQ EH LQVWDOOHG RYHU ÀXH SLSH VHFWLRQ ZLWK
hemmed end up. Press down on each pipe
section until lances securely engage the hem on
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-
ing between inner and outer pipe sections.
Continue to assemble chimney sections as
outlined above, making sure that both inner
and outer pipe sections are locked together.
When installing double wall snap-lock chim-
ney together, it is important to assure the joint
between chimney sections is locked. Check by
pulling chimney upward after locking. Chimney
will not come apart if properly locked. It is not
necessary to add screws to keep chimney
together (exception, see Figure 9, page 8).
Figure 5 - Outside Air Kit
Secure to Collars with Metal Tape,
Screws or Straps (Min. of 1/4" x 20"
LQVL]H
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)
CAUTION: Combustion air
inlet ducts shall not terminate
in attic space.
VENTING INSTALLATION
Continued
CHIMNEY PIPE
The DESA Heating, LLC chimney system
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lock, double-wall pipe segments, planned
for maximum adaptability to individual site
requirements. Actual lengths gained after
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-
ation (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".
WARNING: The opening in
the collar around the chimney at
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be obstructed. Never use blown
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enclosure.