-21-
LP GAS INSTALLATIONS
HORIZONTAL TERMINATIONS
COMBINATION VENTING
LPG - Minimum / Maximum Horizontal Venting
Minimum Horizontal Length
(HMIN)
Maximum Horizontal Length
(HMAX)
6”
152 mm
4 ft
1.3 m
LPG - Minimum / Maximum Vertical Terminations
Horizontal to
Vertical Venting
Minimum Vertical
Length
Maximum
Vertical Length
90° elbow
3 ft
914 mm
40 ft
12.2 m
LPG - Max Vertical / Max Horizontal Combination
Maximum
Vertical Rise
Maximum
Horizontal Run
Total Length
10 ft
3.1 m
20 ft
6.1 m
30 ft
9.2 m
Maximum number of 90° elbows: 5
WARNING: Horizontal vent sections require 1/4” (6 mm) rise for every 12” (305 mm) of travel.
Rear Vent LP Combination Venting
REAR VENTING DIAGRAM (VERTICAL & HORIZONTAL TERMINATIONS)
(A)
S tand-off Brackets
(B)
S tand-off Heat Shields
(C)
90
°
Elbow
(D)
Vertical Vent Heat Shield (not
applicable)
(E)
Horizontal Vent Heat Shield (not
applicable)
(F)
Termination Cap
LPG - 90° ELBOW + 3ft (914mm) V
MIN
/ 40ft (12.2m) V
MAX
LPG - 6” (152mm) H
MIN
/ 4ft (1.3m) H
MAX
H
MIN
H
MAX
F
A
V
MIN
V
MAX
C
F
