When selecting a metal concentric vent kit, the goal is to ensure safe, efficient, and easy installation for your gas heating or water heating system. This guide highlights five top kits suitable for residential projects, focusing on compatibility, installation ease, and practical limitations. Best for new installations or replacements in homes with high-efficiency appliances, these kits help reduce wall penetrations and simplify vent routing.
Product snapshot: the following table summarizes the five selected vent kits, their typical use, and notable considerations. This quick reference helps buyers compare core factors at a glance.
- Rheem Concentric Vent Kit – 2 in.: Best for Rheem setups requiring direct venting.
- Dakota Sourcing 22153 PVC Concentric Vent Termination Kit, 3-inch: Great for water heaters needing simple, single-hole venting.
- Diversitech CVENT-3 3-Inch Concentric Kit: Ideal for high-efficiency furnaces and tankless systems with a clean look.
- Rheem ProTech Concentric (3″/5“) Direct Vent Horizontal Termination Kit: Suitable for up to 5-inch walls; direct replacement option.
- SP20286 Beige 3-Inch Concentric Vent Termination Kit: Aesthetically blends with siding and offers universal compatibility.
This selection avoids kits that explicitly conflict with typical residential Massachusetts or New York restrictions and focuses on versatile, widely used configurations.
Rheem Concentric Vent Kit – 2 in.

Brand: Rheem. Features include OEM genuine factory authorized part and installation simplification. This kit is best for Rheem systems that require a compact, two-inch concentric vent solution. It is not approved for use in Massachusetts and New York, which is a crucial regional limitation buyers must consider. Use this when replacing a similar Rheem kit or matching a compatible direct-vent water heater setup. No compatibility details beyond typical Rheem installations are provided here, so verify fit with your unit before purchasing.
Best for: Homeowners with compatible Rheem gas water heaters seeking a straightforward, factory-authorized vent kit for simpler installation. Caution: Not approved for MA or NY installations.
Dakota Sourcing 22153 PVC Concentric Vent Termination Kit, 3-inch

Brand: Dakota Sourcing. This 3-inch concentric vent termination kit is designed for water heaters and supports horizontal or vertical venting with a single-hole cut, saving time and cost. It enables easier assembly and can help reduce labor on job sites. The data highlights its single-hole approach, which is advantageous for clean wall penetration but requires precisely matching ducting to a compatible appliance.
Best for: Home contractors or DIYers installing a 3-inch vent termination for water heaters with a need to minimize wall cuts. Choose this if: you want a simplified single-hole venting solution. Caution: Verify that your appliance supports this specific kit size and configuration.
Diversitech CVENT-3 3-Inch Concentric Kit

Brand: Diversitech. This 3-inch kit is tailored for high-efficiency furnaces and tankless gas water heaters, providing a dual-pipe configuration for efficient venting. It emphasizes proper ventilation and a low-profile design that conceals intake and exhaust pipes for a tidy appearance. The kit is positioned as a practical, streamlined installation option for modern systems requiring clean external walls.
Best for: Homes with high-efficiency furnaces or tankless water heaters needing a compact, low-profile vent solution. Better for: installations prioritizing a concealed vent path. Caution: Ensure compatibility with existing venting layout and clearances.
Rheem ProTech Concentric 3″/5″ Direct Vent Horizontal Termination Kit

Brand: Rheem. This direct vent kit is designed as a replacement option for Rheem, Ruud, and Richmond water heaters, with capacity for up to 5-inch walls when using additional venting. The product’s value lies in its direct compatibility with multiple brands, simplifying upgrades or replacements in a mixed-brand installation. It supports horizontal termination for easier exterior routing.
Best for: Homeowners replacing or upgrading to a Rheem-compatible concentric vent on a wall with notable thickness. Choose this if: you need a direct replacement that works across several brands. Caution: Check wall thickness limits and ensure you have adequate clearance for 5-inch wall use.
SP20286 Beige 3-Inch Concentric Vent Termination Kit

Brand: SHAHN. This 3-inch vent termination kit is designed for Rheem water heaters and furnaces, offering a beige aesthetic that blends with exterior walls. It emphasizes compatibility with Rheem/Ruud HVAC systems and provides a neater exterior appearance by concealing vent components. It is described as made from premium materials resistant to heat and corrosion, aiming for longevity in harsh environments.
Best for: Installations where exterior appearance matters and Rheem/Ruud compatibility is needed. Better for: users seeking a visually unobtrusive vent solution. Caution: Confirm that beige color matches your home’s exterior and check exact compatibility with your unit.
Buying Guide
- What size do I need? Match the kit size (2 in., 3 in., or 3/5 in. combo) to your appliance’s venting requirements and the wall thickness. Some kits support up to 5 in. walls when combined with additional venting.
- Is it compatible with my appliance brand? Some kits are branded for specific manufacturers (Rheem, etc.). Verify OEM compatibility to avoid fit issues.
- Horizontal vs. vertical venting: Some kits emphasize single-hole installation and horizontal termination, which simplifies exterior work but requires space for proper clearance.
- Material and durability: Look for heat- and corrosion-resistant plastics or OEM-grade components to ensure long-term performance in harsh exhaust environments.
- Regional restrictions: Certain kits are not approved in specific states (e.g., Massachusetts and New York) due to venting code differences. Check local codes before purchase.
- Aesthetic considerations: Some beige or low-profile options improve exterior wall appearance by concealing pipes.
FAQ
- What is a concentric vent kit? A concentric vent kit combines intake and exhaust paths in a single compact assembly, reducing wall penetrations and simplifying installation for gas appliances.
- Can I install a concentric vent kit on any gas water heater? Not all kits are universally compatible. Verify the kit’s compatibility with your specific appliance brand and model.
- Do I need professional installation? Some kits are straightforward for DIY installation if you follow manufacturer instructions, but many installations involving gas vents should be performed by a licensed professional for safety and code compliance.
- Are there regional code restrictions? Yes. Some kits are not approved for use in certain states. Always check local building codes before purchasing.
- What should I consider for wall thickness? If your wall is very thick, ensure the kit supports up to the required thickness or be prepared to use an extended termination option approved by the manufacturer.
- What about aesthetics? Some kits offer low-profile or beige finishes to improve exterior appearance since vent pipes can be visible on exterior walls.