VENTING REQUIREMENTS
THIS MODEL IS APPROVED FOR USE WITH SIMPSON DURA-VENT GS CHIMNEY SYSTEM 4" X 6 5/8"
AND AMERI-VENT DIRECT VENT SYSTEM 4" X 6 5/8" FOR HORIZONTAL AND VERTICAL TERMINATIONS.
IMPORTANT:
This model is manufactured with the appropriate adaptor for proper connection of
EITHER
the
Simpson Dura-Vent DV-GS Chimney System OR Ameri-Vent Direct Vent System.
Contact your dealer for the appropriate vent kit and components part numbers for the chimney system you are
using.
Refer to the vent manufacturer's installation manual for complete installation instructions. Installation must
conform with the venting requirements & restrictions as outlined in this manual.
IMPORTANT:
Consult the local and national installation codes to assure that adequate combustion and
ventilation air is available.
MINIMUM / MAXIMUM VENTING REQUIREMENTS:
Minimum vertical rise / maximum horizontal run:
0" / 14 ft.
Maximum vertical rise:
25 ft. - (requires 90° elbow to vertically position the chimney system).
Minimum horizontal vent run:
6"
Maximum horizontal run:
14 ft. (1/4" incline per horizontal foot must be maintained.)
Elbows:
(1) 90-degree elbow is included within the maximum vent runs. Each additional elbow reduces the
maximum horizontal by 3'.
HORIZONTAL & VERTICAL VENTING CHART
Vertical Rise
Horizontal Run
Page 5
EXAMPLES OF CHART CONFIGURATIONS:
A vertical rise of 8 ft. may run horizontally a
maximum 9 ft. 7 in.
Vertical terminations require a 90° elbow to
vertically position the chimney.
Horizontal runs within the vertical configuration
reduces the maximum vertical run.
