Precisely engineered accessories can add even more reliability, convenience and flexibility to Rinnai Tankless Water Heaters. With Rinnai Common Venting, up to 8 tankless water heater units share the same vent system. This allows for significantly fewer wall or roof cuts, less labor, and longer vent lengths than ever possible with single-unit tankless water heater venting.
Concentric venting reduces install time and costs
Engineered concentric venting especially for gas appliances
Concentric venting allows for secure connection
3 in. / 5 in. condensing vent pipe extension 39 in.
For use with Se+ and se series tankless water heaters (condensing) and m, e, q series boilers
Package quantity: 1
1-year limited warranty
*Note. Rinnai is changing the language in its warranty terms and conditions found in the current User Installation manuals. The existing statement will be replaced by the following: "This Limited Warranty applies only to products that are installed in the United States and Canada. Improper installation may void this Limited Warranty. It is recommended that a trained and qualified professional who has attended a Rinnai installation training class complete your installation." All warranties (old or new manual) will be honored as written above.
I bought the product to provide combustion air and exhaust 3 feet from the water heater to outsid...
I bought the product to provide combustion air and exhaust 3 feet from the water heater to outside. It's plastic and I don't see anything wrong in using it when it says that is what it is for but the ask a professional said not to use it. I don't know why he said that but it seems to work great. I wish the Pro would have said why it was not god to use. I thought it very odd Home Depot would sell the tankless water heater but not support the installation? Turns out they do with this product.