48
VENTING
Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces
#CLW-40 R.3 November 2021
7.4.3 Natural Gas and Propane
Combination Venting
DIAG. 2 venting
configurations are shown with rigid pipe. Listed vent
systems (section
7.1
pg. 45)
with flexible pipe can be installed following
the vent manufacturer’s installation instructions.
IMPORTANT: Horizontal vent sections require ¼” (6mm) rise for every
12” (305mm) of travel.
(i)
Minimum Vertical Venting / Minimum / Maximum Horizontal
Termination
45° vertical elbow + 90° horizontal elbow + 6” (152mm) minimum
horizontal / 48” (1219mm) maximum hori termination
cap
(ii)
Minimum 12” Vertical Vent Pipe / Minimum / Maximum
Horizontal Termination
45° vertical elbow + 12” (305mm) vertical vent pipe + 90°
horizontal elbow + 6” (152mm) minimum horizontal / 12’ (3.66m)
maximum hori termination cap
(iii)
Minimum 24” Vertical Vent Pipe / Minimum / Maximum
Horizontal Termination
45° vertical elbow + 24” (609mm) vertical vent pipe + 90°
horizontal elbow + 6” (152mm) minimum horizontal / 20’ (6m)
maximum hori termination cap
(iv)
Basement Installation - Minimum Vertical Rise / Maximum
Horizontal Run
45° vertical elbow + 4” x 6-5/8” r 24” (609mm) minimum
4” x 6-5/8” vertical vent pipe + 90° horizontal 4” x 6-5/8” elbow
+ 6” (152mm) minimum horizontal / 4’ (1219mm) maximum
hori termination cap
DIAG.2 NATURAL GAS & PROPANE COMBINATION VENTING
(A)
Header Heat Shield
(B)
Stand-off Assembly
(C)
45
°
Elbow
(D)
90
°
Elbow
(E)
Reducer
(F)
Termination Cap
48”
(1219mm)
6”
(152mm)
12’
(3.66m)
20’
(6m)
24” (610mm) Vent Pipe
12” (305mm) Vent Pipe
6”
(152mm)
6”
(152mm)
48”
(1219mm)
24” (610mm) 4” x 6-5/8” Vent Pipe
6”
(152mm)
4” x 6-5/8”
90° elbow
A
B
C
D
A
B
C
F
D
A
B
C
D
F
F
A
B
C
F
E
i
iii
ii
iv
