VENTING INSTALLATION
OPTIONAL OUTSIDE AIR KIT (MODEL AK4/AK4F)
The installation of an outside air kit should be per- formed during the rough framing of the fireplace due to the nature of it's location. Outside combus- tion air is accessed through a vented crawl space (AK4F) or through a sidewall (AK4).
CAUTION: Combustion air inlet ducts shall not terminate in attic space.
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
LINEAL GAIN
PART NO. | DESCRIPTION | GAIN (IN) | |
Georgian | Fireplace | 66 1/2" | |
Pipe Section | 10 5/8" | ||
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Pipe Section | 16 5/8" | ||
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Pipe Section | 23 5/8" | ||
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Pipe Section | 34 5/8" | ||
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Pipe Section | 46 5/8" | ||
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Round Termination | 7 3/4"* | ||
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Square | 7" to 15"* | ||
with Slip Section |
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*The lineal gain for the terminations is mea- sured to the flue gas outlet height.
12" Galvanized |
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Outer Pipe |
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12 | 3 | /8" | Hemmed | |
| End | |||
Stainless | ||||
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Inner Pipe |
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Vented Crawl Space
(Check Local Codes
Before Installing in a
Vented Crawl Space)
Air Inlet Eyebrow
Vent Hood Required for Wall Installation
Figure 6 - Lineal Gain |
ASSEMBLY AND INSTALLATION OF |
DOUBLE WALL CHIMNEY SYSTEM |
Figure 5 - Outside Air Kit
CHIMNEY PIPE
The DESA chimney system consists of 12, 18, 24, 36 and 48"
WARNING: The opening in the collar around the chimney at the top of the fireplace must not be obstructed.Neveruseblowninsula- tion to fill the chimney enclosure.
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 as- |
sembled 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 5 the flue pipe section with the |
hemmed end up. Press down on each pipe section |
until the lances securely engage the hem on the fire- |
place 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. When install- |
ing double wall |
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 10). |
8 | www.desatech.com |