Class A Chimney/Masonry Chimney Conversion
SECTION 7
VENTING
#SP-41-L
R.6 February 2022
30
HUSSONG MFG. CO., INC.
KOZY HEAT FIREPLACES
7.5 Class A Chimney/Masonry
Chimney Conversion
This appliance is approved to be adapted for Class A/masonry
chimney conversion kits utilizing a 4” (102mm) flexible exhaust by any
vent manufacturers listed in section
on page 25.
Before conversion, have the existing installation inspected by a
qualified chimney sweep or professional installer. The existing
chimney system must be in serviceable condition, and functionally
sound. Before proceeding with following installations, check with
local building jurisdiction to verify this type of installation is allowed
in your area.
Follow
for allowable venting configurations for installation
in existing through-the-ceiling, Class A chimney or masonry chimney.
Route the exhaust gases and intake air through the existing Class A
chimney/masonry chimney.
7.5.1 4” Flex Pipe Venting Configurations
IMPORTANT: Horizontal vent sections require at least 1/4” (6mm) rise
for every 12” (305mm) of travel.
IMPORTANT: Care should be taken when installing flexible pipe to avoid
a tight bend that may cause abrasion or damage to the flexible pipe.
Vent options listed below (i, ii) allows for a minimum of 0” (0mm) to a
maximum of 24” (610mm) horizontal run using rigid or flexible pipe.
(i)
Minimum / Maximum Vertical Terminations:
Retro Con 10’ (3.05m) minimum length of 4” aluminum
flexible pipe / 50’ (15.24m) maximum length of 4” aluminum
flexible pipe + top a termination cap
(ii)
Minimum / Maximum with Rigid Pipe Vertical Terminations:
90° horizontal elbow + Retro Con 10’ (3.05m) minimum
length of 4” aluminum flexible pipe / 50’ (15.24m) maximum
length of 4” aluminum flexible pipe + top a termination
cap
10’
(3.05m)
50’
(15.24m)
10’
(3.05m)
50’
(15.24m)
A
B
D
D
B
C
D
C
D
C
C
i
ii
DIAG. 3
4” FLEX PIPE CHIMNEY CONVERSION
(A)
90
°
Elbow
(B)
Retro Connector
(C)
Top Adapter
(D)
Termination Cap
