Rinnai FOT-220 Vent Extension Kit 21–39.3″ | Direct-Vent Gas Heater Exhaust Pipe

Overview

🔧 Rinnai FOT-220 Direct-Vent Extension Kit – 21″ to 39.3″ Adjustable PipeThe Rinnai FOT-220 Vent Extension Kit is an OEM-approved extension system designed for Rinnai EX17 and EX22 direct-vent wall heaters. This kit extends the allowable vent length from 21 inches up to 39.3 inches, making it ideal for installations requiring additional depth or wall thickness adjustment.This high-quality extension maintains a fully sealed combustion venting pathway, ensuring safe intake and exhaust operation for both LP and Natural Gas direct-vent heaters. The kit includes both flexible metal vent tubing and a rigid extension section, giving HVAC installers maximum flexibility in the field.✔

Key Features

OEM Rinnai-certified vent extension kitAdjustable vent length from 21″–39.3″Designed for Rinnai EX17 & EX22 heatersSuitable for both LP and NG direct-vent modelsIncludes flexible and rigid vent sectionsMaintains proper sealed combustion airflowReduces installation complexity in deeper walls✔ Ideal For:Direct-vent gas heater installationsRetrofits and remodeling projectsThick-wall or masonry-wall installationsHVAC professionals & licensed gas installersThis kit ensures that your Rinnai direct-vent system operates safely and efficiently while meeting manufacturer venting requirements.

Product details

Part / SKU	FOT-220

Package includes

• Rinnai FOT-220 Vent Extension Kit 21–39.3" | Direct-Vent Gas Heater Exhaust Pipe

Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.