Hot Water Heating


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P-K MACH® Condensing Boilers

Models: C750 (750 MBTU), C900 (900 MBTU), C1050 (1050 MBTU), C1500H (1500 MBTU), C2000H (2000 MBTU), C2500 (2500 MBTU), C3000 (3000 MBTU), C4000 (4000 MBTU)

Many customers have relied on P-K MACH® boilers for when they need a condensing boiler that is reliable, efficient and constructed of quality materials.

The P-K MACH® condensing boiler is an ideal choice for a wide variety of commercial and industrial building applications, including new construction as well as retrofit projects.

Once again, Harsco Industrial Patterson-Kelley leads the industry into a whole new dimension with a boiler of vastly greater capability and performance precisely tailored to today’s conditions and requirements: the P-K MACH® boiler.

Research shows the P-K MACH® boiler features the best, most advanced metallurgy ever offered in a commercial heating boiler. The P-K MACH® boiler works as well in older systems as in modern ones and in a wide range of temperatures to achieve unprecedented cost savings and efficiencies. After installing the P-K MACH® boiler, countless users have been able to reduce their fuel bills and total cost of ownership.

All P-K MACH® boilers, including dual fuel boilers and outdoor boilers, come standard with our easy to operate NURO® control system. The NURO® control even allows a P-K MACH® boiler to be paired with a P-K MODU-FIRE® Forced Draft boiler to create a cost-effective hybrid boiler system.

Sized to get in and fit in.

Installation time is reduced

There’s no rigging required to put your P-K MACH® condensing boiler in any room of your building, whether it’s the basement or the penthouse. All P-K MACH® condensing boilers fit through a standard 36 inch doorway or a standard elevator.

Our largest models (1,500,000 BTU/hr and larger) are equipped with wheels which means they can be moved by two people without a forklift. The narrow design of all P-K MACH® condensing boilers allow them to navigate corners and hallways with ease.

P-K MACH® condensing boilers are perfect for new installation and retrofit projects, requiring only 4 hook ups gas, water, electric and venting.



Fire it up!

P-K MACH® condensing boilers feature fully independent cast aluminum heat exchangers. Aluminum is easier to cast than other metals. The result is increased heat transfer surface for higher efficiency. The aluminum heat engine easily sheds condensate thanks to an aluminum oxide barrier that forms during use for extreme corrosion resistance.machscreen11_nuromachscreen21_nuro
Your aluminum solution

The Heat Engine

The heart of the P-K MACH® Condensing Boiler


P-K MACH condensing boilers are CSA certified at 92% – 96% efficiency, with actual thermal efficiencies up to 99%. This can help qualify for federal, state and utility rebates.


NURO® Touch-Screen Control System

Turndown energy usage

The P-K MACH® is equipped with the latest touch-screen technology, the NURO Touch-Screen Control. It provides the most intuitive interface in the industry. Designed to maximize efficiency, the NURO®  Control System monitors and modulates the combustion and ignition of the boiler to maintain the desired outlet temperature.


The NURO®‘s easy-to-use touch-screen interface provides simple step-by-step navigation for set-up, maintenance, custom adjustments, efficiency, help and more.


The true power of NURO intuitive software is in its simple step-by-step boiler set-up. Whether you are installing one boiler or more, the NURO® makes it a snap. Whether installing a single boiler or cascading, with a simple touch, select from a variety of pre-configured settings for optimal system efficiency.

Configuring multiple boilers doesn’t get any easier than with NURO.   Since NURO® uses a computer with advanced software, just copy the settings to a USB stick, and transfer them to each boiler (two USB ports are available). This dramatically reduces set-up costs and time.


While most competitors have hardware driven controllers that are a costly hassle to upgrade and maintain, the NURO® provides the long-term ROI you’ve been waiting for. Our software driven computer allows for on-site upgrades to be easily made with minimal boiler knowledge. This reduces the amount of maintenance hours needed by expensive boiler technicians. Software upgrades provide long-term upgradability, which eliminates hardware replacement and costly service calls.


  • All-purpose boiler suitable for condensing and non-condensing systems
  • Revolutionary new, fully independent cast sectional heat exchanger
  • Unique aluminum alloy resists corrosive condensate
  • New boiler room layouts and control methods
  • Certified low NOx performance
  • Low water-side pressure drop
  • Full modulation burner with 5:1 turndown
  • Variable speed combustion air blower
  • Automatically compensates for changes in air temperature and pressure
  • Certified at 3.5 inch Water Column minimum gas pressure
  • Optional outdoor, roof, and dual fuel models


  • A viable option for existing system retrofit as well as in new installations
  • Works well at low or high temperatures
  • Simplifies construction
  • Reduces overall plant life-cycle costs
  • Improves comfort
  • Enhances your system’s technical and economic performance
  • Extremely low electrical energy consumption increases potential savings
  • Dramatically improves cycle efficiency
  • Powerful new tool for building LEED® points
  • Qualify for utility rebates
  • Barely audible, even at high fire
  • Actual net thermal efficiencies may be achieved up to 99%
  • Water temperatures as low as 34° F

LEED® is a registered trademark owned by U.S. Green Building Council Corporation.


For more information about this or any of our other products, please contact us or click here to find your authorized Harsco Industrial Patterson-Kelley representative.


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