DuraVent PolyPro User Manual
Installation Instructions
PolyPro Single-Wall Gas Vent
System for Category II & IV
Gas-Burning Appliances
PolyPro
®
A MAJOR CAUSE OF VENT RELATED FIRES IS FAILURE
TO MAINTAIN REQUIRED CLEARANCES (AIR SPACES) TO
COMBUSTIBLE MATERIALS. IT IS OF THE UTMOST IMPORTANCE
THAT POLYPRO® BE INSTALLED ONLY IN ACCORDANCE WITH
THESE INSTRUCTIONS.
WARNING
CARBON MONOXIDE POISONING
HAZARD. Failure to follow the steps
outlined below for each appliance
connected to the venting system being
placed into operation could result in
carbon monoxide poisoning or death.
• Examine all components for possible
shipping damage prior to installation;
• Read all instructions before beginning
the installation and follow these
instructions exactly as written.
• Proper joint assembly is essential for a
safe installation. Check the integrity of
ALL joints upon completion of assembly
• This venting system must be free to
expand and contract under normal
operation.
• Assure unrestricted vent movement
where required through walls, ceilings
and roof penetrations.
• This venting system must be supported
in accordance with these instructions.
• Do not mix pipe, ttings, or joining
methods from dierent vent system
manufacturers. Do not use adhesives
of any kind with this venting system.
insurance and safety listing of your
appliance. Acceptance of the installed
system is dependant on full compliance
with these installation instrucitons
WARNING
Risk of carbon monoxide poisoning
or re due to joint separation or pipe
breakage.
Keep these instructions for future
reference.
Dear Customer, Installer, or End User:
We welcome any comments regarding
matters pertaining to our DuraVent products.
We welcome any ideas, input or complaints
to help improve our product oering. Send
your emails to:
president@duravent.com
If you are searching for tech support or
product information, please phone us at
800-835-4429.
Or email us at:
techsupport@duravent.com
PolyPro® is one of M&G DuraVent's line of
products.
PolyPro Single-Wall Gas Vent System
For the most up-to-date installation instructions, see www.duravent.com
CONTENTS
LISTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . 4
APPLICATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 4
PERMITS . . . .. . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . 4
GENERAL INSTALLATION NOTES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
CLEARANCES TABLE 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 4
CONDENSATE DRAIN . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . .4
JOINT CONNECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . 5
EQUIVALENT LENGTH CHART TABLE 2 . . . . . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . 5
APPLIANCE CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 6
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
ENCLOSURE REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
HORIZONTAL TERMINATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
WALL AND CEILING PENETR ATION TABLE 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
VERTICAL TERMINATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
MULTIPLE VENT RUNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
ALUMINUM FLEX AIR INTAKE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
WARRANTY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
PolyPro
®
3
LISTING
Listed to ULC S636
Rated Class IIA, IIB, and IIC vent system
maximum temperature 230°F (110 °C)
maximum positive pressure 15 in-w.c.
Massachusetts Plumbers Board,
# G1-0811-42
APPLICATION
ANSI Category II and IV gas-burning
appliances
Appliances specically tested and listed to
use M&G DuraVent PolyPro Venting
PERMITS
Check with your local Building Ocial, Fire
Ocial, or other authority having jurisdiction
regarding permits, restrictions, and
installation inspections in your area.
GENERAL INSTALLATION NOTES
Read these instructions before beginning.
You must use only authorized M&G DuraVent
PolyPro vent parts, or other parts specically
authorized in these instructions and/or listed
by the appliance manufacturer in order to
maintain a safe, approved system.
• Do not ll any air space clearance
(Table 1) with insulation.
• Do not mix parts or try to match with
other products or use improvised
solutions.
• Do not install damaged or modied
parts.
Table 1
• Use soapy water to lubricate gaskets.
• Never use Petroleum base lubricants.
If these directions and those of the appliance
manufacturer dier, follow the more
conservative requirements. If you have any
questions, contact either your dealer or M&G
DuraVent directly. A venting system must
not be routed into, through, or within any
other vent, such as an existing masonry or
factory-built chimney ue, unless that vent
or chimney is not being used to vent another
appliance and is only used as a conduit for
the gas-vent system. Plastic venting systems
shall not pass through re rated separations
without approved restopping.
Refer to the appliance manufacturer's
instructions for maximum and minimum
vent lengths permitted with your specic
appliance model. This information should
include guidance on the maximum number
of elbows and related pressure-drops. The
total vent length from the appliance to
the termination shall not be greater than
specied by the appliance manufacturer.
If specic guidance is not oered by the
appliance manufacturer as to Equivalent
Vent Lengths (EVL) for vent components, the
general guidelines in Table 2 can be used.
CONDENSATE DRAIN (Fig.1)
Refer to the appliance manufacturer’s
installation instructions for requirements of
condensate drainage. Ensure proper system
slope for drainage. (Fig.7)
Clearance to Combustibles
VENT PIPE ORIENTATION
Single Wall Vertical Horizontal
Up to 190°F 0" 0"
Up to 230°F 0" ¼" (6mm) all around
Concentric
Up to 230°F 0" 0"
4
IMPORTANT
The vent system must be compliant in
accordance with local code requirements
and appropriate National Codes: In
the US: NFPA 54 / ANSI Z223.1 National
Fuel Gas Code or the International Fuel
Gas Code. In Canada: CAN/CGA-B149.1
Natural Gas Installation Code or CAN/CGA-
149.2 Propane Installation Code.
IMPORTANT
To prevent possible recirculation of ue
gases, the installer must consider the
eects of prevailing wind conditions,
eddy zones, nearby buildings,
obstructions, or other obstacles such as
shrubs when planning exhaust and air
intake locations. M&G DuraVent can not
be held responsible for poor appliance
performance or damage to buildings
due to an incorrect installation. The
minimum clearances detailed within our
instructions may not be adequate in some
circumstances depending on the specics
of the installation. For this reason we
always recommend vertical venting.
SIPHON
P-TRAP
Figure 1
WARNING
CARBON MONOXIDE POISONING HAZARD
Failure to follow these installation
instructions could result in personal
injury or death
JOINT CONNECTIONS
Verify the gasket is seated evenly inside the
groove in the female end. There are two
versions of locking band available, one with
stando legs (Fig.2), one without (Fig.3).
For both: Slide Locking Band on male pipe
section. Fig.2: For pipe without Locking
Button: Slide pipe sections together until
joint is bottomed out then slide apart
¼”
to 5/8” (7.5 - 15 mm) for expansion. Clip the
locking band clasp onto the female hub.
Fig.3: For PP/Metal pipe with Locking Button:
Insert locking button into locking band
recess, rotate button away from Locking
Band Clasp, insert pipe sections, push
lock band clamp downward into socket,
disengage button 1/4" from socket. Screws
are not allowed for joint connection.
Never penetrate the wall of PolyPro vent
pipe. (Exception- a SS screw may be
used outside the building on exterior
termination ttings to orient an elbow,
etc).
• IMPORTANT: Locking bands are
Table 2 - Equivalent Length Chart
2" Equivalent
Length
1-ft Vent Pipe 1-ft 1-ft 1-ft 1-ft 1-ft 1-ft
2-ft
1-ft Flex Pipe
1-ft Flex Pipe
45 Elbow 3-ft 3-ft 5-ft 6-ft 6-ft 13-ft
90 Elbow 5-ft 7-ft 12-ft 14-ft 14-ft 19-ft
Tee 9-ft 12-ft 19-ft 21-ft 22-ft 29-ft
(same diameter
as rigid)
0.4-ft
(updsized one
diameter)
3" Equivalent
Length
2-ft
(same diameter
as rigid)
0.6-ft
(updsized one
diameter)
4" Equivalent
Length
2-ft
(same diameter
as rigid)
0.6-ft
(updsized one
diameter)
5" Equivalent
Length
2-ft
(same diameter
as rigid)
N/A N/A N/A
6" Equivalent
Length
N/A N/A
8" Equivalent
Length
5
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