P-K Indirect Fired Water Heater Solutions

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


Patterson-Kelley’s indirect fired water heater solutions' small footprint  allows for easy access by technicians for maintenance and support; leading to quicker repairs and shorter system outages.  High fuel efficiency reduces plant life-cycle costs and provides a quick return on investment.

Our indirect line of water heaters include:

COMPACT®
  • Constant circulation by the pump improves temperature control and minimizes scale
  • Performs equally well with steam or high temperature boiler water
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DURATION III
  • High quality stainless steel brazed plate heat exchanger
  • Specifically engineered to complement any condensing heating source

MACH® 'n' Roll
  • Domestic hot water and comfort heat combined in a compact, easy to maintain design
  • Ideal for retrofitting old buildings

About Patterson-Kelley

Patterson-Kelley, a division of the Harsco Industrial Groups (HSC), is the leading provider and producer of commercial hot water heating solutions serving the commercial heating industry with the best-known and most respected products in the field. With over 135 years of experience and an innovative R&D pipeline, we provide a full line of condensing and non-condensing boilers, semi-instantaneous water heaters, and an array of commercial boiler and water heating products including gas fired, dual fuel and outdoor boilers.