24
VENTING
SP-41-L MANUAL REV#2 OCT 2017
Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces
7.5.2 Combination Venting
IMPORTANT: The horizontal vent heat shield must be installed
when using a 90° elbow off the top of the appliance. Refer to
Section 7.7 on page 26.
IMPORTANT: Horizontal vent sections require ¼ in (6 mm) rise
for every 12 in (305 mm) of travel.
I
MPORTANT: This fireplace horizontal vent installation requires
wall pass-through products to be fully lined with unfaced
insulation products listed as noncombustible per ASTM E 136.
Table 7.3, Natural Gas Coaxial Horizontal Vent Terminations Min.
Vertical and Min. Horizontal and Max. Horizontal
Minimum Vertical
Venting
Minimum
Horizontal Run (H
MIN
)
Maximum
Horizontal Run (H
MAX
)
90° elbow
6 in
152 mm
4 ft
1219 mm
Table 7.4, Propane Coaxial Horizontal Vent Terminations Min.
Vertical and Min. Horizontal and Max. Horizontal
Minimum Vertical
Venting
Minimum
Horizontal Run (H
MIN
)
Maximum
Horizontal Run (H
MAX
)
90° elbow
6 in
152 mm
3 ft
914 mm
Table 7.5, Natural Gas and Propane Coaxial Horizontal Vent
Terminations Min. Vertical/Max. Horizontal
Minimum
Vertical Rise
Maximum
Horizontal Run
9 in
228 mm
10 ft
3 m
12 in
305 mm
14 ft
4.2 m
24 in
609 mm
20 ft
6 m
Table 7.6, Natural Gas and Propane Combination Coaxial
Terminations Max. Vertical/Max. Horizontal
Maximum
Vertical Rise
Maximum
Horizontal Run
Total Length
25 ft
7.6 m
25 ft
7.6 m
50 ft
15.2 m
Maximum number of 90° elbows: 5
Figure 7.2, Natural Gas and Propane Combination Venting
NATURAL GAS AND PROPANE COAXIAL HORIZONTAL VENTING DIAGRAM
(A)
Stand-off Heat Shields
(B)
90
°
Elbow
(C)
Vertical Vent Heat Shield
(D)
Horizontal Vent Heat Shield
(E)
Termination Cap
NATURAL GAS: 90° ELBOW + 6” (152mm) H
MIN
/ 4’ (1219mm) H
MAX
PROPANE: 90° ELBOW + 6” (152mm) H
MIN
/ 3’ (914mm) H
MAX
A
B
C
D
E
