Vertical Terminations
SECTION 7
VENTING
#CLW-50-MV
R.1 October 2021
47
HUSSONG MFG. CO., INC.
KOZY HEAT FIREPLACES
7.6 Vent Installation
7.6.1 Vertical Terminations
Natural Gas and Propane Installations
venting configurations are shown with rigid pipe. Listed
vent systems (section
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 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. No 90° elbows
are allowed. For every 45° elbow used, 18” (457mm) must be
subtracted from maximum venting allowed.
50’
(15.24m)
3’
(914mm)
A
C
i
3’
(914mm)
50’
(15.24m)
A
B
C
ii
DIAG. 1
NATURAL GAS & PROPANE VERTICAL TERMINATIONS
(A)
45° Elbow
(B)
Reducer
(C)
Termination Cap
