Z-Flex 4” Z-Vent Horizontal Vent Kit w/ Backflow Preventer

Z-Flex 4” Z-Vent Horizontal Vent Kit w/ Backflow Preventer
Z-Flex 4” Z-Vent Horizontal Vent Kit w/ Backflow Preventer QR Code
Views: 6666 Model: 2ZVWB04



Weight:12.00 lb

Dimensions (L x W x H ): 13.00 x 9.00 x 19.00

Usually ships: 1 business days
Qty: Add to Cart


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The 2ZVWB04 from Z-Flex is a 4” Z-Vent Horizontal Vent Kit w/ Backflow Preventer. This kit provides a simple, all-in-one solution for installation of a tankless water heater in typical, in-room combustion application. Such installation is typical for garages, basements and other areas with access of fresh air.

In-room combustion refers to the installation method, where TWH's exhaust gases must be vented through the outside wall (usually the one the unit is mounted on), while the intake (fresh air supply) is obtained from the room where the unit is installed. It is important to make sure that there's a constant supply of fresh air to the installed area, such as a window.

This Kit includes all major components for installation of a Takagi tankless water heater with horizonal venting through an outside wall (with thickness of 4-7"):

(1) Z-Vent Termination Hood;
(1) 4" Z-Vent 90° Elbow;
(1) 4" x 1.5ft Z-Vent pipe;
(1) 4" x 1ft Z-Vent pipe;
(1) Z-Vent Wall Thimble (4-7" adjustable);\
(1) Takagi Flue Outlet x Z-Vent Pipe Adapter with Built-in Backflow Preventer;

Order of assembly (starting from the tankless water heater's 4" flue outlet):

1. Appliance adapter with backflow preventer (Takagi x Z-Vent)
2. 1.5ft pipe
3. Elbow
4. 1ft pipe
5. Wall thimble
6. Termination hood

4 ( 4 / 5 )
Vent kit was well packaged and shipped on a timely basis and arrived in good condition. The kit worked very well although the directions were a bit hard to understand. It was constructed very well and all connections went together tightly and securely. I was well satisfied. My only complaint is that in order to purchase it as a kit I had to pay for a 4" x 18" Z-Vent pipe that I did not want or need. The joint of pipe now just takes up space in my shop. I would suggest a custom order kit so other customers do not have to waste their money in order to buy a complete kit. If it had not been for that this would definitely have been a five star review.

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