Installation Sheet

16 Page
downward and for vertical runs, installing a condensate drain is recommended. Please refer to
pp. 17 and 18 for the diagrams.
 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™
5" Air intake hood 100112579 2FAIGAL05
5" Gear clamp N/A 7HS84X
5" Straight pipe - 6" length 100112580 2NVP5.5
5" Straight pipe - 1' length 100112581 2NVP51
5" Straight pipe - 2' length 100112582 2NVP52
5" Straight pipe - 3' length 100112583 2NVP53
5" Straight pipe - 4' length 100112584 2NVP54
5" Adjustable straight - 10"-18" length 100112585 2NVALS5
5" 45 degree elbow 100112586 2NVE545
5" 90 degree elbow 100112587 2NVE590
5" Wall thimble (4"-7") 100112734 2NVWT5
5" Wall thimble (5"-10") 100112735 2NVWT5L
5" Horizontal drain pipe 100112588 2NVHD5
5" Vertical drain pipe 100112589 2NVVD5
5" Storm collar 100112590 2NVSC5
5" Firestop 100112591 2NVFS5
5" Flat roof flashing 100112592 2NVFF5
5" Angled roof flashing 100112593 2NVAF5
5" Termination hood 100112594 2NVTH5
5" Termination tee 100112595 2NVTT5
5" Extreme weather rain cap 100112596 2NVWC5
5" Universal appliance adaptor - 3-in-1 (F-F adaptor, condensate drain, &
back-flow preventer
100112597 2NVBFA5
5" Back-flow preventor & F-F adaptor 100112598 2NVBFU5
5" F-F adaptor 100112599 2NVAFF5
5" Support strap 100112600 2NVSS51
Installaon
Installaon Manual