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Vent Installation
SECTION 7
VENTING
#SFD-36
R.6 February 2022
38
HUSSONG MFG. CO., INC.
KOZY HEAT FIREPLACES
7.5.2.3 Natural Gas and Propane 4” x 6-5/8”
Maximum Combination Venting
For maximum vertical and maximum horizontal combination venting,
the vent terminations must be within the shaded area in
•
24” (610mm) min 5” x 8” vertical 4” x 6-5/8” reducer
+ 23’ (7m) max 4” x 6-5/8” vertical 90° elbow for 4”
x 6-5/8” pipe + 25’ (7.6m) max 4” x 6-5/8” horizontal
termination cap
•
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 7.6
4” x 6-5/8” Natural Gas and Propane Combination Venting