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Heat & Glo • Crescent II • 2083-902 Rev. G • 9/0514
2. Top Vent - Vertical Termination
No Elbow
Figure 5.6
Figure 5.7
Two Elbows
V
1
V
1
H
1
V
2
V
1
= 45 ft Max. (13.7m)
RESTRICTOR
PLATE
Note: For vertical venting of 8 feet or higher, the
restrictor plate should be used. The restrictor is
shipped in bottom of fireplace (secured on right
side with a tie strap). Insert the restrictor plate
in center of flue. Once installed in center of flue
turn the restrictor plate so it sits on top of firebox.
V
1
H
1
Maximum V
2
V
1
+ V
2
Minimum
One Elbow 2 ft 610 mm * * *
6 in 152 mm 2 ft 610 mm * * *
1 1/2 ft 457 mm 3 ft 914 mm * * *
2 1/2 ft 762 mm 5 ft 1.5 m * * *
3 1/2 ft 1067 mm 7 ft 2.1 m * * *
4 1/2 ft 1.4 m 15 ft 4.6 m * * *
V
1
+ V
2
+ H
1
= 38 ft (11.6m) Max.
*No specific restrictions on this value EXCEPT
V
1
+ V
2
+ H
1
cannot exceed 38 ft (11.6m)