#BAY-41-LE R.5 July 2019
Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces
VENTING
35
Figure 7.3, NG/Propane - Rear Vent Combination Venting (H/V)
7.6.2.2 Combination Venting
IMPORTANT: Horizontal vent sections require at least ¼ in (6 mm) rise
for every 12 in (305 mm) of travel.
Table 7.7, NG/Propane -Combination Venting Vertical Terminations
Horizontal to Vertical
Venting
Minimum Vertical
Length
Maximum Vertical
Length
90° vertical elbow
3 ft
914 mm
50 ft
15.2 m
(i)
Minimum / Maximum Combination Venting Vertical Terminations:
90° vertical elbow + 3’ (914mm) minimum vertical length / 50’
(15.2m) maximum vertical termination cap
Table 7.8, NG/Propane - Max Vertical / Max Horizontal Combination
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: 4
DIAG.5
REAR VENTING (COMBINATION VENTING )
(A)
Stand-off Brackets
(B)
Stand-off Heat Shields
(C)
90
°
Elbow
(D)
Termination Cap
A
B
C
D
NATURAL GAS AND PROPANE
90° ELBOW + 3 ft (914mm) VERT MIN/50 ft (15.2m) VERT MAX
(i)