Rinnai 223181 11.5” Universal Non-Condensing Horizontal Termination Vent Kit

SKU: 223181

Weight	4 lbs
Dimensions	13 × 12 × 12 in

$193.98

In stock — available to order.

Sold individually. Each quantity ordered is one unit. Kits are one complete kit; products sold by length use the stated length unit.

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Quantity	Unit price	Saving
1–4	$193.98	0%
5–9	$184.28	5%
10+	$174.58	10%

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Rinnai 223181 11.5” Universal Non-Condensing Horizontal Termination Vent Kit

Specifications & product details

REGIONS SUPPLY BUYING GUIDE

Product details & buying advice

Identify the water heater and vent system before selecting a control, accessory or vent component.

Product type	Water-heater controls and vent components
Part / SKU	223181

What to check before ordering

Record the full heater model and its indoor/outdoor and condensing/non-condensing configuration.
Use the model instructions to confirm the vent system, diameter and function of the replacement part.
Have a qualified installer check the complete vent route and termination.

Service reminder: A similar diameter or connector is not enough to approve mixed vent components or control models.

Have gas-system installation and service completed by qualified personnel. Use the current instructions for the exact model and the requirements that apply at the installation location.

Product help & manufacturer resources

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Overview

Rinnai 223181 11.5” Universal Non-Condensing Horizontal Termination Vent KitThis Rinnai 223181 Horizontal Termination Kit provides a complete venting solution for Rinnai non-condensing tankless water heaters. Engineered for safety and durability, it allows clean horizontal exhaust and intake termination through an exterior wall while maintaining proper air separation and weather protection.

Ideal for propane and natural gas systems, this vent kit fits multiple Rinnai non-condensing models and installs quickly with minimal tools. The compact 11.5-inch design makes it perfect for tight spaces and retrofit applications.

Key FeaturesUniversal design fits Rinnai non-condensing water heaters11.5″ horizontal termination length

Factory-sealed construction for easy installation

Built-in weather hood for outdoor protectionHigh-temperature resistant materialsEnsures proper air intake and exhaust balanceSpecifications

Part Number: 223181

Length: 11.5 inches

Use: Horizontal wall termination

Compatible With: Rinnai non-condensing LP & natural gas systems

Condition

Brand New📦 This Rinnai vent termination kit ensures reliable, efficient, and compliant installation for your gas water heating system.

Product details

Part / SKU	223181

Package includes

Rinnai 223181 11.5” Universal Non-Condensing Horizontal Termination Vent Kit

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

Compatibility & part-number help

Match the manufacturer part number and equipment model to the listing. Check connection sizes, fuel type, pressure or capacity, voltage and dimensions where applicable. A similar appearance or part number alone does not confirm compatibility.

For help, send a parts inquiry with the part number, equipment model, label photos and quantity. Manufacturer documents and item-specific information, when supplied, are in the product details above.

Shipping & availability

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