Industry Trusted Commercial Boilers and Water Heaters

Focused on quality, reliability and innovation, Patterson-Kelley has lead the industry in commercial high-efficiency heating solutions for over 135 years.

About Patterson-Kelley


Reliability. Efficiency. Innovation. Patterson-Kelley provides the industry with dependable, high-efficiency commercial heating solutions.

Hydronic Boilers

Small in size, but big on output

Designed with a small footprint, P-K Boilers fit through standard doorways for easy installation

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Water Heaters

Reliable performance year after year.

Designed to reliably and economically meet peak demands with trouble-free performance.

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Control Systems

Easy to use. Easy to set up. Easier to maintain.

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We build custom replacement bundles for existing equipment.

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Complement your system with pumps and tanks.

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Locate Your Rep

We Speak Your Language

With over 135 years of experience, we have developed a deep understanding of your specific needs and can help you find the best P-K solution for your project.

Mechanical Contractors

Our boilers and water heaters are designed with service in mind. The NURO® Control swivels so technicians can view the screen while servicing the product.

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We listen to your design constraints and provide a total solutions approach.

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Building Owners

Remotely monitor your system with NURO Connect. Receive alerts on your smartphone when it is time to service the product.

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Patterson-Kelley Aluminum Boilers become a Preferred Piece of Heat Transfer Equipment in Korea

Patterson-Kelley aluminum boilers have become a preferred piece of heat transfer equipment U.S. based, in Korean military operations. Our partnership with Hansung Ul Industrial Co. and Bekaert has allowed us to build reliable and highly efficient boilers that meet all commercial heat and hot water requirements.

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Join Patterson-Kelley at ASPE Booth #1555

STOP BY BOOTH #1555 TO SPEAK WITH OUR WATER HEATER EXPERTS! We're heading to Atlanta on October 1-2 for the 2018 ASPE Convention & Expo, the largest event for plumbing system design professionals!

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Contact us to learn more about the Patterson-Kelley difference.

Contact Patterson-Kelley