4
Vent Termination Clearances
Framing
PREPARATION
Continued
VENT TERMINATION CLEARANCES
The final position of your fireplace depends on the location of the vent termination in relation to the clearances that must be observed as shown in Figure 5 on page 5.
The vent system serves as the “chimney” as well as the combustion air supply (air intake). The horizontal run must have a rise of 1/4" (.6 cm) for every 12" (30.48 cm) of horizontal run towards the termination. The maximum horizontal run depends on the vertical rise from the fireplace adapter collar to the vent termination (see table below).
VERTICAL |
| HORIZONTAL |
|
|
|
0 | to | 1 ft (30.48 cm) |
1 ft (30.48 cm) | to | 4 ft (121.92 cm) |
2 ft (60.96 cm) | to | 8 ft (243.84 cm) |
3 ft (91.44 cm) | to | 12 ft (365.76 cm) |
4 ft (121.92 cm) | to | 16 ft (487.68 cm) |
5 ft (152.40 cm) | to | 15 ft (457.20 cm) |
6 ft (182.88 cm) | to | 14 ft (426.72 cm) |
7 ft (213.36 cm) | to | 13 ft (396.24 cm) |
8 ft (243.84 cm) | to | 12 ft (365.76 cm) |
|
|
|
FRAMING
Once the final location has been determined, observing height clear- ances for vent termination, you may construct framing using dimen- sions shown in Figures 3 and 4, depending on your installation.
If the appliance is to be installed directly on carpeting, tile (other than ceramic), or any combustible material other than wood floor- ing, the appliance must be installed on a metal or wood panel extending the full width and depth of the appliance.
CD32M
A | 32 3/8" | 36 1/8" | 40 1/8" |
B | 34 5/8" | 41 1/4" | 48 1/4" |
C 19" | 23 1/2" | 25 5/8" | |
A
B
C
Figure 3 - Framing Dimension
WARNING: Never allow the vent to run downward as this may cause excessive temperatures which could cause a fire.
WARNING: Horizontal sections of this vent sys- tem require a minimum clearance of 2" from the top of the pipe and 1" minimum to the sides and bottom. Vertical sections of this system require a minimum of 1" clearance to combustible materials on all sides
BDC
A
E |
F |
G |
H
Nailing Tabs
of the pipe.
| CD32M | ||
A | 28 1/2" | 35 3/4" | 41 5/8" |
B | 13 5/8" | 15" | 21 5/8" |
C | 39 3/8" | 49 5/8" | 58 1/2" |
D | 9 1/2" | 10 3/8" | 13 1/2" |
E | 9 7/8" | 13 3/4" | 16 3/4" |
F | 34 1/2" | 41 1/8" | 48" |
G | 35 1/2" | 42 1/8" | 48 1/4" |
H | 54 3/8" | 68 1/4" | 81 1/2" |
Figure 4 - Corner Installation
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