Struggling with efficient venting for your tankless gas water heater? The right parts can simplify installation and improve performance.
The core purpose of tankless gas water heater venting is to safely expel exhaust gases while maximizing efficiency. **Rheem ProTech Concentric Straight Pipe** and **Rheem ProTech 90 Degree Elbow** are top products designed to enhance your system. They ensure optimal airflow and reduce heat loss, providing a reliable solution for homeowners.
With features like durable construction and easy installation, these products simplify the venting process. Their unique designs fit various setups, ensuring efficient operation.
In our full review, we break down performance, durability, and more to help you choose.


Rheem ProTech 36″ Concentric Vent Pipe
Rheem ProTech Concentric Straight Pipe: 36” long, stainless steel, 1-year limited warranty.
Benefits
- Fast, easy installation with a one-step connection.
- Leak-proof seamless precision formed gasket ensures durability.
Drawbacks
- No additional fittings included; may require extra purchases.
The Rheem ProTech Concentric Straight Pipe is designed specifically for venting tankless gas non-condensing water heaters. Its 36-inch length makes it suitable for various installations, while the stainless steel construction offers excellent resistance to corrosion and heat. The one-step connection simplifies the installation process, allowing for a quick setup without the need for complicated tools or additional components.
The leak-proof seamless gasket is a standout feature, providing peace of mind by preventing any potential leaks during operation. This pipe is particularly beneficial for those looking to maintain efficiency and safety in their water heating systems.
However, it’s important to note that the product does not come with additional fittings, which may necessitate further purchases depending on your installation requirements. While this might be an inconvenience for some, the overall quality and ease of installation make it a strong contender in the market.
A practical pick for homeowners and professionals who need reliable venting solutions for tankless systems.
To buy this product, click here.
Rheem ProTech 90° Vent Elbow for Water Heaters
Rheem ProTech 90 Degree Elbow for venting Rheem Tankless Non-Condensing Gas Water Heaters: 3” diameter, stainless steel, 1-year limited warranty.
Benefits
- Fast, easy installation with a one-step connection.
- Leak-proof seamless precision formed gasket ensures no air leaks.
- Prevents venting sag and wobble for stable operation.
Drawbacks
- No additional fittings included, which may require extra purchases.
This elbow is a practical pick for efficient venting in tankless gas water heating systems. Its robust construction and thoughtful design make it a reliable choice for homeowners seeking to optimize their water heating setup.
To buy this product, click here.
Rheem ProTech Horizontal Vent Kit for Tankless Water Heaters
Rheem ProTech Horizontal Vent Straight Termination Kit for Tankless Gas Non-Condensing Water Heaters: 12” long, dural stainless steel components, 2-year warranty.
Benefits
- Compatible with up to 10” wall thickness for versatile installation.
Drawbacks
- Installation may require additional tools not included in the kit.
This vent termination kit is designed specifically for tankless gas water heaters, ensuring efficient exhaust management. The durable stainless steel components enhance longevity and resist corrosion, making it a reliable choice for any installation. The included 12-inch wall plate and screws simplify the setup process, while the 94-degree elbow allows for flexible vent routing.
One of the standout features is its compatibility with walls up to 10 inches thick, accommodating various construction types. However, users should note that installation may require tools not provided in the kit, which could add to the overall project time.
Overall, this vent termination kit is a practical pick for homeowners or contractors looking for a reliable solution for tankless gas water heater venting. Its durable construction and thoughtful design make it a solid investment for efficient system performance.
To buy this product, click here.
Rheem ProTech 12″ Concentric Vent Pipe
Rheem ProTech Concentric Straight Pipe: 12” long, stainless steel, 1-year limited warranty.
Benefits
- Fast, easy installation with a one-step connection.
- Leak-proof seamless precision formed gasket ensures durability.
- Corrosion-resistant stainless steel construction for long-lasting use.
Drawbacks
- Limited to a 1-year warranty compared to competitors.
Ideal for homeowners looking to efficiently vent tankless gas non-condensing water heaters, the Rheem ProTech Concentric Straight Pipe is a practical choice. Its straightforward installation process makes it accessible even for those with minimal plumbing experience. The leak-proof design gives peace of mind, ensuring that the venting system operates safely and effectively.
However, it’s important to note that the warranty period is shorter than some other options on the market, which may be a concern for those seeking long-term reliability. Overall, this venting solution is well-suited for users who prioritize ease of installation and a robust build.
A practical pick for small spaces where efficient venting is essential.
To buy this product, click here.
Rheem ProTech 24″ Stainless Vent Pipe
Rheem ProTech Stainless Concentric Straight Pipe: 24” long, stainless steel, 1-year limited warranty.
Benefits
- Fast, easy installation with a one-step connection.
- Leak-proof seamless precision formed gasket ensures reliable performance.
- Durable stainless steel construction provides long-lasting use.
Drawbacks
- Limited to 24” length, which may not suit all installations.
A practical pick for tankless gas water heater venting.
To buy this product, click here.
Faq about Tankless Gas Water Heater Venting:
1: What is tankless gas water heater venting?
Tankless gas water heater venting refers to the system used to expel combustion gases from the unit safely outside the home.
2: Why is proper venting important?
Proper venting is crucial to prevent harmful gases, like carbon monoxide, from entering your home and to ensure the efficient operation of the heater.
3: What types of venting are available for tankless gas water heaters?
Common venting types include direct vent, power vent, and natural vent systems, each suited for different installation needs.
4: Can I use existing venting for my tankless gas water heater?
Existing venting may not be suitable; it’s essential to check compatibility and local codes before reuse.
5: What materials are used for venting?
Venting materials typically include PVC, CPVC, or stainless steel, depending on the type of venting system and local regulations.
6: How do I ensure my venting system is installed correctly?
Hire a qualified professional to install and inspect your venting system to ensure it meets safety standards and local codes.
Conclusion
The Rheem ProTech 36″ Concentric Vent Pipe exemplifies superior engineering, facilitating efficient exhaust management while ensuring optimal performance of tankless gas water heaters. Its robust design enhances safety and durability, making it an indispensable component for modern installations.
Similarly, the Rheem ProTech 90° Vent Elbow offers exceptional versatility, enabling seamless transitions in venting systems. Its precision construction minimizes airflow resistance, thereby enhancing the overall efficiency of water heating systems. Together, these products epitomize innovation in venting solutions, catering to the demands of contemporary plumbing applications.




