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Page 24
TOP VENT - VERTICAL TERMINATION
No Elbows
Index
Letter
Dimensions
Maximum
Minimum
A
40 ft
10 ft
Figure 38
Two 90
°
Elbows
Dimensions (in Feet)
A
B*
MIN. 4
8
20
6
10
18-1/2
8
12
17
10
14
16
MAX. 12
16
15
*Maximum horizontal run is 100% of vertical, but cannot exceed
20 feet.
Figure 39
Three 90
°
Elbows
Note: Subtract 3ft (914 mm) from the total horizontal measure-
ment for each 90° elbow installed horizontally. Subtract 1-1/2 ft
(457 mm) from the total horizontal measurement for each 45° el
-
bow installed horizontally.
Dimensions (in Feet)
A
B*
MIN. 4
8
17
6
10
15-1/2
8
12
14
10
14
13
MAX. 12
16
12
*Maximum horizontal run is 100% of vertical, but cannot exceed
17 feet.
Figure 40
After installing the vent system, install flue heat shield.
1. Hand bend tabs on flue heat shield out 90°.
2. Attach to insulation box as shown in Figure 41.
Figure 41 (vent pipe removed for clarity)
