Combination Venting
SECTION 7
VENTING
#BHM-38 & #BHM-38-BW
R.1 September 2021
50
HUSSONG MFG. CO., INC.
KOZY HEAT FIREPLACES
7.4.3 Combination Venting
Natural Gas and Propane Installations
Vent termination must be within the shaded area in
FIGURE 7.2
.
FIGURE 7.2
is shown with rigid pipe. Listed vent systems (section
7.1
pg. 46)
with flexible pipe can be installed following the vent
manufacturer’s installation instructions.
25’ (7.6m) maximum vertical rise + 25’ (7.6m) maximum horizontal run
= 50’ (15.2m) of total length
•
Maximum of (5) 90° elbows. For each additional 90° elbow
used after the first elbow, 3’ (914mm) must be subtracted from
maximum venting allowed.
•
(2) 45° degree elbows may be used in place of (1) 90° elbow.
For each 45° elbow used, 18” (457mm) must be subtracted from
maximum venting allowed.
FIGURE 7.2
Combination Venting
