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HORIZONTAL VENTING
**NOTE:
All dimension lengths for vertical or horizontal
runs are measured from center of the 7" elbow.
All vent pipes must maintain a minimum of 1" clearance to
combustible materials.
Horizontal length (see venting graph)
C
F
Vertical length (see venting graph)
A
B
10"
4"
E
D
B
A
43"
10 Ft Section
MIHR-10
12 1/2 Ft.
07 1/2 Ft.
6 Ft Section
MIHR-6
8 1/2 Ft.
3 1/2 Ft.
Center of 7" elbow
to outside wall
Maximum extended length
Maximum retracted length
FIGURE 5. TYPICAL INSTALLATIONS.
Header
10 ft. from center of elbow
12 1/2 ft. from center of fireplace
Stucco Can
Vent Termination
3 ft. flex section
B
Solid section includes
90 degree elbow
Hearth
Wall Thickness
(4" - 12")
A
FIGURE 6. EXTENDED 10' SECTION
7 1/2 ft. from
center of fireplace
3 ft. flex
section
10 ft. from center of elbow
A
B
Stucco Can
Vent Termination
Solid section includes
90 degree elbow
Hearth
FIGURE 7. RETRACTED 10' SECTION
10' Max
FIGURE 8.TYPICAL VENT TERMINATIONS
AND FIREPLACE LOCATIONS
Stucco Can
Vent Termination
3 ft. Max
3, or 4 ft. flex section
turned 90 degrees.
FIGURE 7.1 HORIZONTAL FLEX
INSTALLATION
