#CLW-40 R.3 November 2021
Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces
VENTING
47
DIAG.1 NATURAL GAS & PROPANE VERTICAL AND HORIZONTAL TERMINATIONS
(A)
Header Heat Shield
(B)
Stand-off Assembly
(C)
45
°
Elbow
(D)
Reducer
(E)
Termination Cap
24”
(610mm)
6”
(152mm)
A
B
C
E
iii
7.4 Natural Draft Installation
7.4.1 Natural Gas and Propane
Vertical Terminations
DIAG. 1 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.
(i)
Minimum / Maximum Vertical Terminations:
45° vertical elbow + 3’ (914mm) minimum vertical length / 50’
(15.24m) maximum vertical termination cap
(ii)
Minimum / Maximum Vertical Terminations with Reducer*:
4” x 6-5/8” r 45° vertical elbow + 3’ (914mm) minimum
vertical length / 50’ (15.24m) maximum vertical
termination cap
*To use any 45° elbow after the first elbow for vertical
terminations with a reducer, the total minimum vertical vent
run must be 10’ (3.05m). A total of (5) 45° elbows may be used.
For every 45° elbow used, 18” (457mm) must be subtracted
from maximum venting allowed.
No 90° elbows allowed when a reducer is used.
7.4.2 Natural Gas and Propane
Horizontal Terminations
DIAG. 1 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.
(iii)
Minimum / Maximum Horizontal Termination
45° elbow + 6” (152mm) minimum horizontal length / 24”
(609mm) maximum horizontal termination cap
50’
(15.24m)
3’
(914mm)
A
B
C
E
i
50’
(15.24m)
3’
(914mm)
A
B
C
E
D
ii
