Rinnai 223182 21″ Universal Horizontal Vent Tenation Kit Non-Condensing

Rinnai 223182 21” Universal Horizontal Vent Tenation Kit – Non-Condensing ModelsThe Rinnai 223182 is a factory-designed 21-inch universal horizontal tenation kit engineered for non-condensing tankless water heaters and heating units. It provides a complete, safe, and weather-resistant vent tenation solution for installations requiring horizontal exhaust through an exterior wall.Constructed with high-quality stainless steel and aluminum, this Rinnai vent kit is corrosion-resistant and precision-fit for long service life. The integrated wall thimble and exterior vent cap ensure clean, professional installation while preventing backdrafts, debris ingress, and moisture intrusion.Perfect for Rinnai non-condensing models, including RL, RLX, and V-Series units, this OEM kit helps maintain performance, efficiency, and compliance with manufacturer venting standards.Key Features & Benefits:OEM Rinnai part – designed for guaranteed compatibility21″ universal vent length for horizontal wall tenationDurable stainless steel/aluminum constructionWeather-sealed vent cap prevents backflow and debris entryMeets UL standards for natural gas and propane systemsSimple installation — no special tools requiredEnsures proper exhaust performance for tankless gas heatersSpecifications:Brand: RinnaiModel: 223182Type: Horizontal Vent Tenation Kit (Non-Condensing)Length: 21 inchesCompatible Gases: Natural Gas / Propane (LP)Use: Rinnai Non-Condensing Tankless Water HeatersCondition: Brand New – Factory Sealed

Important Notice – Propane Parts, Accessories, and Regulators

This product, including but not limited to propane parts, accessories, fittings, hoses, valves, and regulators, must be installed and serviced by a licensed professional in accordance with all applicable local, state, and federal codes, regulations, and standards.

The seller assumes no responsibility for the installation, inspection, application, maintenance, or use of this product.

It is the sole responsibility of the buyer to ensure the product is appropriate for their intended application and that it is installed correctly by a qualified individual.

Improper installation, maintenance, or use of propane products may result in serious injury, death, fire, explosion, or property damage.

The buyer accepts all risks, liabilities, and potential consequences associated with the use of this product.

By purchasing this item, the buyer acknowledges that they have read, understood, and agreed to these terms and confirm that installation and use will be conducted by a properly licensed and qualified professional.

Item Specifics

• Brand: Rinnai
• MPN: 223182
• UPC: 8713645176642
• Type: Horizontal Vent Tenation Kit
• Vent System: Concentric, Non-Condensing
• Orientation: Horizontal
• Length: 21″
• Vent Size: 3″ x 5″
• Inner Exhaust Material: Aluminum
• Outer Intake Material: Plastic
• Color: White
• Application: Compatible Rinnai non-condensing tankless water heaters
• Maximum Wall Thickness: Up to 21″
• Country of Origin: Netherlands

The Rinnai 223182 is a 21-inch universal non-condensing horizontal tenation kit with a 3″/5″ concentric design, aluminum inner exhaust, and plastic outer intake.

Package Includes

• 21″ horizontal concentric tenation assembly
• Concentric elbow
• Wall plates

Kit contents should be verified against the actual item and photos before listing. 

Description

Rinnai 223182 Universal Horizontal Wall Discharge Tenation Kit – 21″

For sale is a Rinnai 223182 Universal Horizontal Tenation Kit designed for compatible non-condensing tankless water heater venting applications.

This all-weather concentric tenation kit is designed for horizontal wall installation and accommodates wall penetrations up to 21 inches. The concentric design combines the combustion air intake and exhaust vent into a single wall penetration.

Features

• Brand: Rinnai
• Part Number: 223182
• Type: Universal Horizontal Tenation Kit
• Length: 21″
• Vent Size: 3″ x 5″
• Application: Non-condensing tankless water heater venting
• Orientation: Horizontal
• Inner Exhaust: Aluminum
• Outer Intake: Plastic
• Concentric intake/exhaust design
• All-weather wall discharge tenation
• Includes elbow and wall plates
• Designed for compatible Rinnai tankless water heaters

Please review all photos and verify the part number, vent size, appliance compatibility, and included components before purchasing. Professional installation according to manufacturer requirements is recommended.