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VERTICAL VENTING REQUIREMENTS
NOTE: MINIMUM VERTICAL RISE FROM TOP OF FIREPLACE BEFORE FIRST ELBOW: 18 IN.
MAXIMUM VERTICAL RISE FROM TOP OF FIREPLACE: 32 FT.
IMPORTANT: A RESTRICTOR IS REQUIRED FOR VERTICAL VENT RUNS OF 14' TO 32' FEET.
ELBOWS: 2 (Dura-Vent & Ameri-Vent chimney)
MINIMUM CLEARANCE TO COMBUSTIBLES: 1"
WHEN VERTICALLY TERMINATING, THE MINIMUM CHIMNEY HEIGHT ABOVE THE ROOF LINE IS DETERMINED BY
THE FOLLOWING CHART:
Roof Pitch
Minimum Chimney Height
Roof Pitch
Minimum Chimney Height
Flat to 6/12
1 ft.
13/12 to 16/12
6 ft.
6/12 to 9/12
2 ft.
17/12 to 21/12
8 ft
10/12 to 12/12
4 ft.
CAUTION: This gas appliance must not be connected to or joined with any chimney flue serving
any other appliance.
Figure 3