36
ALL VENT PIPE MATERIALS AND FITTINGS MUST COMPLY WITH THE FOLLOWING:
ITEM
MATERIAL
STANDARDS FOR INSTALLATION IN:
UNITED STATES
CANADA
Vent pipe and fittings
PVC schedule 40
ANSI/ASTM D1785 CPVC and PVC venting must be ULC-S636 Certified.
CPVC schedule 40/80
ANSI/ASTM F441
Pipe cement/primer
PVC
ANSI/ASTM D2564 ULC-S636 Certified.
CPVC
ANSI/ASTM F493
NOTICE: DO NOT USE CELLULAR (FOAM) CORE PIPE
TABLE 13. PVC, VENT PIPE, AND FITTINGS
TABLE 14. DIRECT VENT ALLOWABLE AIR/VENT LENGTHS
MODEL
AIR INTAKE
DIAMETER
(INCH)
AIR INTAKE
MIN. LENGTH
(FT)
AIR INTAKE
MAX. LENGTH
(FT)
VENT
DIAMETER
(INCH)
VENT MIN.
LENGTH
(FT)
VENT MAX.
LENGTH
(FT)
XP 1000
6
12
100
6
12
100
XP 1300
6
12
100
8
12
100
XP 1700
8
12
100
8
12
100
XP 2000
8
12
100
8
12
100
XP 2600
8
12
100
8
12
100
XP 3400
10
12
100
10
12
100
TABLE 15. ROOM AIR ALLOWABLE VENT LENGTHS
MODEL
VENT DIAMETER
(INCH)
VENT MIN. LENGTH
(FT)
VENT MAX. LENGTH
(FT)
XP 1000
6
12
100
XP 1300
8
12
100
XP 1700
8
12
100
XP 2000
8
12
100
XP 2600
8
12
100
XP 3400
10
12
100
When determining equivalent combustion air and vent length, add 5 feet (1.5 m) for each 90° elbow and 3 feet (0.9 m) for each 45°
elbow.
EXAMPLE: 20 feet (6 m) of PVC pipe + (4) 90° (3) 45° elbows = 49 equivalent feet (15 m) of piping.
