Rinnai Ext. Kit S 11"-20", EX11CT

The Rinnai Vent Extension Kit, part number FOT-155, is a factory-approved venting accessory designed to provide a short vent length extension for compatible Rinnai EX11CT direct-vent heaters, supporting proper exterior termination placement within limited wall thickness installations.

What’s included: One (1) short vent extension kit for direct-vent installations.

Installation limits: For use only within the approved short extension range and with compatible Rinnai vent components; install in accordance with manufacturer instructions and local codes.

Compatibility: Compatible with Rinnai EX11CT direct-vent heater venting systems requiring a short extension range.

• Factory-approved Rinnai direct-vent extension kit
• Designed for short vent length installations
• Supports proper exterior vent termination placement
• Direct-fit accessory matched to Rinnai venting systems
• Helps maintain sealed combustion performance

This extension kit supports compliant venting in short wall-depth installations.