FOT-157 Rinnai Ext. Kit L 61.0"-79.6" (No Elbow), 263, 431, 556 Zoom

Rinnai Ext. Kit L 61.0"-79.6" (No Elbow), EX11CT

FOT-157

Models: EX11CT, EX11DT

Status: In Stock

US$340.00

Description

Description

The Rinnai Vent Extension Kit, part number FOT-157, is a factory-approved venting accessory designed to extend the vent length range for compatible Rinnai EX11CT direct-vent heaters, helping achieve proper exterior termination placement without using an elbow.

What’s included: One (1) vent extension kit set (no elbow) for direct-vent routing.

Installation limits: For use only within the specified extension range and with compatible Rinnai venting; install per manufacturer requirements and local codes.

Compatibility: Compatible with Rinnai EX11CT direct-vent heater venting applications that require a 61.0–79.6 inch extension range.

Features

Features

  • Factory-approved vent extension kit for Rinnai direct-vent systems
  • Designed for EX11CT venting applications
  • Extension range supports 61.0–79.6 inch vent length requirements
  • No-elbow configuration for straight-through vent routing
  • Helps achieve correct exterior termination placement
  • Supports proper draft and sealed vent performance when installed correctly

Specifications

Specifications

Product Type: Direct-vent extension kit (no elbow)
Brand: Rinnai
Manufacturer Part Number: FOT-157
Application: Direct-vent extension for heaters
Function: Extends vent length to meet installation requirements
Compatible Models: EX11CT

 

This extension kit helps maintain proper vent routing within approved installation limits.

 

Support

Support

   
Product FAQ

Q. What is the Rinnai FOT-157 used for?

A. It is a vent extension kit used to extend the direct-vent length range for compatible Rinnai EX11CT heater installations without an elbow.

Q. Which heater model is this vent extension kit designed for?

A. This kit is designed for the Rinnai EX11CT direct-vent heater.

Q. What does “no elbow” mean for this kit?

A. It is intended for straight-through vent routing where an elbow is not required for the installation layout.

Q. What vent length range does this extension kit support?

A. It is intended to support an extension range of approximately 61.0 to 79.6 inches for compatible vent setups.

Q. Where is this vent extension kit installed?

A. It installs inline within the direct-vent run to achieve the required overall vent length and exterior termination placement.

Q. Do installation instructions matter for this vent extension kit?

A. Yes, installation must follow Rinnai venting instructions and applicable building and combustion safety codes.

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