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ALL VENT PIPE MATERIALS AND FITTINGS MUST COMPLY WITH THE FOLLOWING:
ITEM MATERIAL STANDARDS FOR INSTALLATION IN:
UNITED STATES CANADA
Vent pipe and ttings PVC schedule 40 ANSI/ASTM D1785 CPVC and PVC venting must be ULC-S636 Certied.
CPVC schedule 40/80 ANSI/ASTM F441
Pipe cement/primer PVC ANSI/ASTM D2564 ULC-S636 Certied.
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° elbows + (3) 45° elbows = 49 equivalent feet (15 m) of piping.