Stainless Steel Vent For Tankless Water Heaters
In search of a solution for your stainless steel venting needs? PlumbingSupply.com® is pleased to offer this premium line of Category III venting components: with quick "Snap-Lock" connections, high quality stainless steel, and included heat-resistant rubber gaskets, these gas exhaust pipe components are a key element of a complete water heater venting installation.
We offer a variety Takagi tankless water heaters AT GREAT PRICES!
to Takagi TKJr2-IN - to Takagi TKJr2-OS - to Takagi T-K4-IN - to Takagi T-K4-OS - to Takagi T-D2-IN - to Takagi T-D2-OS
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Nova venting products are single wall and require 6" clearance from combustible material. Category III piping systems operate with positive vent pressure and are sealed by the high temperature seals and locking devices built into the Category III approved vent pipe. Category III piping systems cannot be joined with Category I gravity vented piping systems.
- High quality, Category III stainless steel exhaust piping
- Versatility - vertical and horizontal terminations
- All Nova Vent products are UL Listed
- All connections have heat resistant rubber gaskets
Straight Vent Pipe - 4" Diameter
Nova Vent 4" straight pipe components range in length from 6 inches to 48 inches, and are compatible with both horizontal and vertical termination installations, providing the perfect solution for both long and short runs of piping.
Shown: 12" Straight Vent Pipe
Adjustable Vent Pipe - 4" Diameter
Adjustable piping components are ideal for when you need that pipe to be just a little bit longer. With its gasketed telescoping section, this component allows you to add additional inches without additional fittings.
Vent Pipe Elbows - 4" Diameter
Used to change the direction of a venting system, vent elbows are available in both 90 degree and 45 degree configurations to accommodate nearly every venting need.
Shown: 90° Elbow
Female-Female Vent Pipe Adapters
Most often used at the beginning or end of the venting system, this adapter allows you to firmly connect two male component ends.
Horizontal Vent Pipe Drain Tee
Horizontal drain tees are installed in a horizontal run to allow any condensate to drain away from the heater, helping to prevent corrosion and keep your tankless water heater healthy.
Vertical Vent Pipe Drain Tee
Install a vertical drain tee to prevent moisture and condensate from entering the water heater. Click here
for an example of a vertical drain tee in use!
Direct Vent Conversion Kit
Direct vent conversion kit fits Takagi T-KJr2/U, T-k4/U and T-D2/U
Wall Vent Terminator with Hood
Also used for terminating a venting system through a side wall, a wall vent terminator with the addition of a hood provides more protection from severe weather conditions.
This wall thimble provides the proper clearance needed to keep piping that is installed through a wall at a safe distance from combustible materials. These wall thimbles easily adjust between 4" - 7" to accommodate various wall thicknesses.
Angled Roof Flashing
This 30° angled roof flashing provides water tight roof venting for angled surfaces, such as a pitched roof. For roof pitches between 3/12 and 7/12.
Flat Roof Flashing
Flat roof flashings provide a water tight, protective joint for venting through a flat surface. For roof pitches between 0/12 and 2/12.
Venting Support Strap
Support straps are also used to provide structural support and proper spacing for your venting installation. These are especially useful for horizontal runs of a venting system.
Extreme Rain Cap
A rain cap allows the system to vent through the roof and helps keep out rain, as well as birds and other foreign objects.
The storm collar is designed to attach directly onto a vent pipe and helps prevent rain from entering through the roof flashing.
Vertical firestops are installed whenever a vent passes through a combustible floor or ceiling.
This pipe cover can be attached directly to the bottom side of the Takagi tankless water heaters to provide a cover for the pipe connections, providing protection with style.
View our Takagi accessories page
Nova venting components can be assembled to meet your specific installation, but for a general idea, please click on the links below for sample installation diagrams:
Sample Rooftop Installation Diagram
Related Items & Accessories
Frequently Asked Questions
Q. "I live in a very cold area and sometimes it freezes. Would I need a backflow preventer?"
A. Yes. A backflow preventer is essential in installations where chilled air could cause the heater to freeze, including indoor installations. And, as always, confirm with a trusted local professional that you have checked for all possible ways to keep your tankless heater from freezing.
Q. "Why do I need a vertical firestop?"
A. A vertical firestop needs to be installed whenever a vent passes through a combustible floor or ceiling to prevent the vent from becoming a way for fire to spread. As always please confirm your local code requirements with the proper authorities.
Q. "I'm replacing some sections of older vent pipe. Can I just add this onto my existing venting material?"
A. While some venting systems may work with together, it is not recommended to mix and match. Also, if you find you need to replace one section, other sections may need to be replaced soon as well.
Q. "Will Nova venting products work with other brands of water heaters?"
A. Nova's line of gas venting products are designed to work with many brand tankless water heaters that require Category III vent piping.
Q. "Will this 4-inch diameter vent pipe work on all sizes and models of Takagi tankless water heaters, regardless of BTU and so on?"
A. Except where noted as designed for a specific unit, these 4-inch diameter gas venting components will work with all sizes and models of Takagi heaters, though which components are appropriate will vary depending on the installation. Please consult with a licensed installer and your local code enforcement agency when installing and venting tankless water heaters.
Q. "Can I use PVC to vent tankless water heaters?"
A. No. The temperature of the exhaust is too high to safely use PVC as venting material. We never recommend PVC as venting even where the ideal exhaust temperatures would technically allow it due to a much higher incident of dangerous issues associated with PVC venting on poorly-maintained gas tankless water heaters.
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