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•
A condensate collector is required for horizontal and/or vertical vent runs exceeding 5 ft of
equivalent length (not including sidewall terminatons).
•
A backflow preventor should be installed in the exhaust when the heater is installed in climates
subject to freezing temperatures.
General rules for vent terminations:
•
Avoid locating the water heater vent termination near
any air intake devices
. These fans can
pick up the exhaust flue products from the water heater and return them to the building. This
can create a health hazard.
•
Locate the vent termination so that it cannot be blocked by any debris, at any time. Most codes
require that the termination must be at least 12 in. (305 mm) above grade and anticipated snow
level, but the installer may determine if it should be higher depending on the job site condition
and applicable codes.
•
A proper sidewall termination is required when the water heater is vented through a sidewall.
•
Refer to the following pages for exhaust termination and air inlet clearances.
Approved Category III, Single Wall, Stainless Steel Venting Suppliers and Part Numbers
WARNING!
Do not mix parts or fittings of different material types, and do not mix pipe, fittings, or
joining methods from different manufacturers. Combustion exhaust can contain carbon monoxide and
must be properly vented outside. Breathing abnormal amounts of carbon monoxide can result in seri-
ous injury or death.
Description
Heater Vent Kits
Z-FLEX®
NovaVENT™
Z-VENT™
4" Straight pipe - 6" length
100112407
2NVP4.5
2SVEPWCF0406
4" Straight pipe - 12" length
100112406
2NVP41
2SVEPWCF0401
4" Straight pipe - 24" length
100112404
2NVP42
2SVEPWCF0402
4" Straight pipe - 36" length
100112403
2NVP43
2SVEPWCF0403
4" Straight pipe - 48" length
100112402
2NVP44
2SVEPWCF0404
4" Adjustable straight pipe - 10"-18" adjustability
100112405
2NVAL4
2SVSPA04
4" 45 degree elbow
100112401
2NVE445
2SVEEWCF0445
4" 90 degree elbow
100112400
2NVE490
2SVEEWCF0490
4" Sidewall termination (4"Termination Hood)
100112419
2NVHTX4
2SVSHTX04
4" Vent termination tee
100112547
2NVTT4
2SVSTTF04
4" Rain Cap
100112415
2NVRC4
2SVSRCF04
4" Extreme weather rain cap
100112548
2NVWC4
2SVSHRC04
4" Horizontal drain tee
100112414
2NVHD4
2SVEDWCF04
4" Vertical drain tee
100112413
2NVVD4
2SVEVDP04
4" wall thimble length 4"-7" wall thickness
100112732
2NVWT4
2SVSWTF04
4" wall thimble length 5"-10" wall thickness
100112733
2NVWT4L
2SVSWTEF04
4" 3-in-1 adaptor (F-F adaptor, condensate
drain, & back-flow preventer)
100112585
2NVBFA4
2SVBFDPA04
4" F-F adaptor
100112399
2NVAFF4
2SVEEWCF0445
4" Backflow preventer w/ F-F adaptor
100112416
2NVBFU4
2ZVB04
4" exhaust / 3" intake DV concentric termina-
tion - 5"-10" adjustability
100112550
2NVHTC43S
2SVSHTC43S
4" exhaust / 3" intake DV concentric termina-
tion - 12"-18" adjustability
100112551
2NVHTC43
2SVSHTC43
4" Sidewall termination, adjustable pipe
100187853
2NVBV4
n/a
4" Wall Thimble, 3"-6" wall thickness
100187852
2NVBT4
n/a
