Empire Comfort Systems FG28BMK(N,P)-1 Installation Instructions Manual page 15

Determining Minimum Vent Height Above the Roof
Determining Minimum Vent Height Above the Roof
ROOF PITCH
Flat to 6/12
6/12 to 7/12
Over 7/12 to 8/12
Over 8/12 to 16/12
Over 16/12 to 21/12
Figure 15
Single Flue - Vertical Vent Run
with 45 degree elbows
WARNING: Major U.S. building codes specify minimum chimney
and/or vent height above the rooftop. These minimum heights are
necessary in the interest of safety. These specifications are sum-
marized in Figure 15.
31793-3-1015
VENT EXAMPLES FOR SINGLE FLUE
H (Min.)
12" (305 mm)
15" (381 mm)
18" (457 mm)
24" (610 mm)
36" (914 mm)
Page 15