#ALP-36S R.7 January 2020
Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces
VENTING
29
7.5.2 Combination Venting
7.5.2.1 Natural Gas Installations
IMPORTANT: The horizontal heat shield must be installed when
installing with 18” minimum vertical rise and minimum horizontal
venting. Refer to Section 7.7 on page 33.
IMPORTANT: Horizontal vent sections require ¼” (6mm) rise for every
12” (305mm) of travel.
(i)
Minimum Vertical Rise / Maximum Horizontal Terminations:
18” (610mm) minimum vertical rise + 90° horizontal elbow + 9”
(229mm) minimum horizontal / 20’ (6.1m) maximum horizontal
+ termination cap
7.5.2.2 Natural Gas Maximum Combination Venting
For maximum vertical and maximum horizontal combination venting,
the vent terminations must be within the shaded area in Figure 7.2.
•
25’ (7.6m) maximum vertical rise + 25’ (7.6m) maximum
horizontal run = 50’ (15.2m) of total length
•
Maximum of (5) 90° elbows.
Figure 7.2, Natural Gas Combination Venting
DIAG.2 NATURAL GAS COMBINATION VENTING
(A)
Stand-off Brackets
(B)
Stand-off Heat Shields
(C)
90
°
Elbow
(D)
Vent Heat Shield
(E)
Termination Cap
A
B
D
C
E
i
