Install Instructions
Installation & Operation Manual
3 General venting (continued)
19
The installer must use a specific vent
starter adapter at the flue collar
connection. This adapter is supplied by
the vent manufacturer to adapt to its vent
system. See Table 3D for approved vent
adapters.
NOTICE
All vent connections MUST be secured by
the vent manufacturer's joint connector
(FIG. 3-9).
NOTICE
Polypropylene
This product has been approved for use with polypropylene
vent with the manufacturers listed in Table 3C.
All terminations must comply with listed options in this
manual and be a single-wall vent offering.
For support and special connections required, see the
manufacturer's instructions. All vent is to conform to standard
diameter and equivalent length requirements established.
When determining equivalent combustion air and vent length
for polypropylene single-wall piping:
• 1 foot of Duravent 4 inch single-wall pipe is equivalent
to 1.6 feet of piping
Flexible polypropylene
For use of flex pipe, it is recommended to have the vent material
in 32°F or higher ambient space before bending at installation.
No bends should be made to greater than 45° and ONLY
installed in vertical or near vertical installations (FIG. 3-8).
Use only the adapters and vent system
listed in Tables 3C and 3D. DO NOT
mix vent systems of different types or
manufacturers. Failure to comply could
result in severe personal injury, death, or
substantial property damage.
⚠WARNING
Installations must comply with applicable
national, state, and local codes. For
Canadian installation, polypropylene vent
must be listed as a ULC-S636 approved
system.
Installation of a polypropylene vent system
should adhere to the vent manufacturer’s
installation instructions supplied with the
vent system.
Table 3C Polypropylene Vent Pipe and Fittings
⚠WARNING
Insulation should not be used on
polypropylene venting materials. The
use of insulation will cause increased vent
wall temperatures, which could result in
vent pipe failure.
Model
Centrotherm InnoFlue SW Duravent Polypro
Polypropylene
Adapter
Joint
Connector
Sidewall Kit*
Sidewall Retaining
Bracket*
Sidewall
Adapter*
Polypropylene
Adapter
Joint
Connector
Sidewall
Kit*
125 - 200
ISAG0303 w/
IAFC03
IANS03 ISLPT0303 IATP0303 ISTAGL0303
3PPS-AD w/
PPS-PAC
3PPS-LB 3PPS-HLK
* These parts are only needed if the sidewall termination assembly is used (see FIG. 4-5B on page 24).
Table 3D Approved PolypropyleneTerminations
IMG00550
JOINT CONNECTOR REQUIRED
AT ALL COMPONENT CONNECTIONS
OF VENT SYSTEM
POLYPROPYLENE ADAPTER
W/FLUE CLAMP
IMG00840
*NOTES: 1) FLEX PIPE MAY ONLY BE RUN IN A VERTICAL ORIENTATION
2) ALL VENT LENGTHS REPRESENTED IN ABOVE CHARTS ARE
EQUIVALENT LENGTHS.
3) SECTION A IS EQUIVALENT FEET OF RIGID PIPE, WHICH MAY
INCLUDE 45 AND 90° ELBOWS. PLEASE SEE SIZING SECTION
FOR DETERMINING EQUIVALENT FEET.
“B” DIM
3” RIGID
3” FLEX
4” FLEX
Duravent 3”
10 FT
20 FT
30 FT
40 FT
50 FT
60 FT
70 FT
80 FT
90 FT
60 FT
53 FT
47 FT
40 FT
33 FT
27 FT
20 FT
13 FT
7 FT
90 FT
80 FT
70 FT
60 FT
50 FT
40 FT
30 FT
20 FT
10 FT
10 FT
20 FT
30 FT
40 FT
50 FT
60 FT
70 FT
80 FT
90 FT
30 FT
27 FT
23 FT
20 FT
17 FT
13 FT
10 FT
7 FT
3 FT
“A” DIM
“B” DIM
Duravent 4”
“A” DIM
4” RIGID
4” FLEX
“B” DIM
3” RIGID
3” FLEX
4” FLEX
Centrotherm 3”
10 FT
20 FT
30 FT
40 FT
50 FT
60 FT
70 FT
80 FT
90 FT
45 FT
40 FT
35 FT
30 FT
25 FT
20 FT
15 FT
10 FT
5 FT
90 FT
80 FT
70 FT
60 FT
50 FT
40 FT
30 FT
20 FT
10 FT
“A” DIM
10 FT
20 FT
30 FT
40 FT
50 FT
60 FT
70 FT
80 FT
90 FT
33 FT
29 FT
26 FT
22 FT
18 FT
15 FT
11 FT
7 FT
4 FT
“B” DIM
Centrotherm 4”
“A” DIM
4” RIGID
4” FLEX
CHIMNEY
CAP
A
B
90 FT
80 FT
70 FT
60 FT
50 FT
40 FT
30 FT
20 FT
10 FT
5” FLEX
Figure 3-8 Near Boiler Flexible Polypropylene Venting
NOTICE
NOTICE
Figure 3-9 Near Water Heater Polypropylene Venting
Approved Polypropylene Vent Manufacturers
Make Model Standard
Centrotherm Eco
Systems
InnoFlue SW/Flex UL-1738/ULC-S636
Duravent (M & G
Group)
PolyPro Single-Wall /
PolyPro Flex
ULC-S636