Finding the right horizontal concentric vent kit helps simplify installation, improve vent aesthetics, and ensure safe exhaust for water heaters and furnaces. This guide highlights five top Amazon options, detailing who they’re best for and what makes them stand out. It’s ideal for homeowners upgrading existing venting or installers seeking reliable, wall-friendly solutions. The buyer’s intent here is straightforward: identify a compatible concentric vent kit that matches wall thickness, vent diameter, and appliance type.
| Product | Best For | Key Benefit |
|---|---|---|
| Concentric Vent Kit – 2 in. (Rheem) | Small-to-mid installations where a 2″ kit fits existing hardware | OEM genuine factory authorized part for straightforward installation |
| Rheem RTG20280-1 ProTech Horizontal Vent Termination Kit | Tankless gas water heaters and compact wall setups | Durable stainless steel with complete wall plate and angled elbow |
| DiversiTech CVENT-3 3-Inch Kit | High-efficiency furnaces and tankless heaters needing a 3″ conical vent | Low profile design conceals intake and exhaust for tidy walls |
| Rheem ProTech Concentric Direct Vent Kit (3″/5″) RTG20274A | Direct replacement for Rheem/Ruud/Richmond with up to 5″ walls | Designed for use with additional venting to complete installation |
| SHAHN SP20286 Beige 3-Inch Vent Kit | Replacement kit for Rheem/Ruud HVAC with 3″ vents | Conceals both pipes; high-heat resistant exterior for durability |
Concentric Vent Kit – 2 in. by Rheem
This 2-inch concentric vent kit is designed as an OEM Rheem part. It aims to streamline installation by providing a factory-authorized solution that integrates with compatible Rheem appliances. Best for owners with existing Rheem equipment requiring a compact vent termination on smaller wall thickness constraints. A limitation is its applicability; it’s not approved for use in Massachusetts or New York, so confirm local codes before purchase.
Rheem RTG20280-1 ProTech Horizontal Vent Termination Kit
This kit combines a durable stainless steel construction with a complete 12-inch wall plate and a 94-degree elbow. It’s best for tankless gas water heaters and situations demanding robust corrosion resistance and reliable wall penetration. Choose this if you value long-term durability and a complete mounting solution. A caveat is that it’s specifically tailored to certain Rheem configurations; verify compatibility with your model.
DiversiTech CVENT-3 3-Inch Kit
This 3-inch vent kit supports high-efficiency furnaces and tankless water heaters with a dual-pipe configuration. It offers a low-profile design that neatly conceals intake and exhaust pipes, resulting in a cleaner exterior wall. Best for installations where aesthetics and unobtrusive venting matter. The kit’s efficiency is tied to proper sizing; ensure the 3″ diameter matches your appliance and vent path.
Rheem ProTech Concentric 3″/5″ Direct Vent Kit RTG20274A
Designed as a direct replacement for Rheem, Ruud, and Richmond water heaters, this kit accommodates up to 5″ walls when additional venting is used. It’s best for homes requiring a flexible solution that adapts to thicker walls. It’s important to confirm compatibility with your heater model and ensure proper venting attachments are available for a complete installation. Limitation: it may require supplementary components for some setups.
SHAHN SP20286 3-Inch Concentric Vent Kit
This beige 3-inch kit is a practical replacement option for Rheem and Ruud systems. It emphasizes compatibility and a neat exterior look by concealing both the intake and exhaust pipes. Best for homeowners updating mismatched or aging vent hardware. A limitation is that the data suggests it relies on specific interconnections; verify fit with your unit before buying.
Dakota Sourcing 22153 PVC Concentric Vent Kit
This PVC concentric vent kit is suitable for water heaters with a 3-inch vent. It’s designed to simplify horizontal or vertical venting by reducing the number of required penetrations, saving labor and time. Best for cost-conscious projects where PVC compatibility is a priority. A potential drawback is PVC limits on certain heat exhaust temperatures; verify temperature ratings for your appliance.
Buying Guide
- Vent Diameter vs. Appliance: Match the kit’s diameter (2″, 3″, or 5″) to your heater or furnace venting needs. Incorrect sizing can cause airflow restrictions or leaks.
- Wall Thickness Compatibility: Some kits support thicker walls (up to 5″). Check your wall thickness before choosing a model.
- Materials and Durability: Stainless steel offers corrosion resistance; PVC is cost-saving but may have temperature limits. Select based on environment and exhaust temperatures.
- Installation Completeness: Look for kits with wall plates, elbows, and mounting hardware to reduce extra purchases.
- Code Compliance: Local codes may restrict certain kits or require Massachusetts/New York approvals. Verify local regulations before buying.
- Replacement and Compatibility: For existing Rheem or Ruud systems, consider direct replacement kits to ensure a smoother retrofit.
FAQ
- What is a concentric vent kit? A concentric vent kit combines exhaust and intake pipes in a single, concentric assembly for a neater wall penetration and reduced overall footprint.
- Which kit is best for a 3-inch vent? DiversiTech CVENT-3 and Rheem ProTech 3″/5″ kits are common choices for 3-inch diameter needs; verify wall thickness and appliance compatibility.
- Can I use PVC for venting gas appliances? PVC is used in some configurations, particularly for certain high-efficiency units, but temperature limits apply. Always check the appliance’s venting requirements.
- Do these kits require professional installation? Installation complexity varies by model and wall setup. While some kits are homeowner-friendly, professional installation is often recommended for gas appliances.
- Will these kits fit all Rheem models? Some kits are designed as direct replacements or universal adapters; confirm model compatibility with the kit’s documentation.
- Are there regional restrictions? Yes, some kits are not approved for use in certain states or regions. Check local building codes and manufacturer guidance.