#BIR-20-L R.5 June 2020
Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces
VENTING
25
Figure 6.3, Combination Venting (V/H)
6.5.1 Natural Gas and Propane Maximum
Vertical & Maximum Horizontal
Combination Venting
The vent configurations listed below are shown with rigid pipe.
Flexible pipe may be used for approved venting configurations by vent
manufacturers listed in Section 6.1 Approved Vent Systems on page
21.Refer to vent manufacturer’s instructions.
For maximum vertical and maximum horizontal combination venting,
the vent terminations must be within the shaded area in Figure 6.3.
•
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.
•
For each 45° elbow used, 18” (457mm) must be subtracted from
maximum venting allowed.
•
(2) 45° degree elbows may be used in place of (1) 90° elbow.