Venting Installation

Continued

Secure to Collars with

Duct Tape or Screws

Air Inlet

Location

Must Allow

For Bushes

or Snow

 

Air Inlet

 

Termination

Vented Crawl Space

Vent Hood

Required for

(Check Local Codes

Wall Installation

Before Installing in a

 

Vented Crawl Space)

 

Figure 13 - Outside Air Kit Installation

Chimney Pipe

The FMI PRODUCTS, LLC chimney 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.

 

LINEAL GAIN

 

PART NO.

DESCRIPTION

GAIN

(V)3612ST

See-Through

52 3/4"

 

Fireplace

 

48-12DM

Flue Pipe

46 5/8"

48-12TM

 

 

36-12DM

Flue Pipe

34 5/8"

48-12TM

24-12DM

Flue Pipe

22 5/8"

48-12TM

 

 

18-12DM

Flue Pipe

16 5/8"

48-12TM

12-12DM

Flue Pipe

10 5/8"

48-12TM

 

 

STL-12D

Chase Style

1" to 12"

Termination

 

 

RLT-12D

Round Top

7"

Termination

 

 

Pipe Installation

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 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 to- gether. 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 lock- ing. The chimney will not come apart if properly locked. It is not necessary to add screws to keep the chimney together (exception, see

Figure 17, page 8).

WARNING: The opening in the collar around the chimney at the top of the fireplace must not be obstructed.Neveruseblowninsulation to fill the chimney enclosure.

15" Galvanized

Outer Pipe

12 3/8"

Hemmed

Stainless

End

Inner Pipe

 

Figure 14 - Pipe Connection

Using ELBOW offsets and Supports

Chimney weight above offset rests on return elbow. Straps must be securely nailed to rafters or joists (see Figure 15, page 8).

To achieve desired offset, you may install combinations of 12", 18", 36" and 48" length of double wall pipe (see offset chart and Figure 16, page 8).

The chimney support section is a 4" strap and 12" length of pipe. A chimney support is required every 30 feet above fireplace after a straight chimney run or above a return elbow after a straight chimney run (see Figure 17, page 8). This support is designed to relieve the extra weight load on fireplace and elbows

when high chimneys are installed.

115607-01D

www.fmiproducts.com

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