Natural Gas Combination Venting
SECTION 7
VENTING
#CAR-39
R.11 February 2022
39
HUSSONG MFG. CO., INC.
KOZY HEAT FIREPLACES
7.5.2.1 Natural Gas Maximum Combination Venting
For maximum vertical and maximum horizontal combination venting,
the vent terminations must be within the shaded area in
.
•
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.
FIGURE 7.4
Natural Gas Combination Venting
