Our customers produce the world’s energy, chemicals, and plastics, and
eliminate harmful emissions from the air, water, and soil. We help them
operate in a cleaner, safer and more economical way.

In 1989, the John Zink brand was acquired by the Koch family of companies. Since its creation, the John Zink brand has embodied the highest quality in combustion and emissions control systems.
Based in Krefeld, Germany, the experts at KEU have been developing innovative air heaters and thermal oxidation systems used in the petrochemical, pharmaceutical and food preparation industries for almost a century. KEU joined the Koch family of companies in 2005.
KALDAIR’s innovative, high pressure flare technologies were purchased by John Zink in 2001.
Known for its vapor recovery technology expertise, the McGill brand was purchased by the Koch family of companies in 1992.
Chentronics joined the Koch family of companies in 2011. An ignition innovator since 1985, Chentronics has been producing patented technologies through extensive research and development with thousands of High Energy Ignition System installations worldwide.
This international burner and flare company joined the Koch family of companies in 2011.
Hamworthy Combustion joined the Koch family of companies in 2011. Founded in the UK in 1962, it’s been a leading provider of boiler burner and marine application solutions throughout Europe, the Middle East and Asia for decades.
This respected brand of boiler burners for the power and industrial markets was acquired through a limited asset purchase in 1999.
The Peabody Engineering brand, which traces its roots to 1920, has a strong stable of boiler burner products and was acquired in 2011.
Coen Company, Inc. has been around for decades and is synonymous with market leading boiler burner technology for the power and industrial markets. The Coen brand was acquired by the Koch family of companies in 2007.
ETI designs and produces equipment for the oil and gas industry. Founded in 1991, it became part of the JZHC family of companies in 2014.
John Zink Hamworthy Combustion is affiliated with Koch Industries, one of the largest privately held companies in the U.S.
Zolo Technologies delivers unique laser-based combustion monitoring and diagnostic solutions that simultaneously measure key combustion constituents in real-time and in ultra-harsh combustion environments. It became part of the JZHC family of companies in 2017.


We’re part of the Koch Industries family of companies. Koch is one of the largest privately held companies in the U.S. As a result, we’re able to develop industry-leading innovations and make strategic acquisitions to offer proven emissions control and clean-air solutions.

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Our workplace is guided by the principles of the Market-Based Management® system (MBM), an empowering business philosophy that places a high level of value and responsibility on each team member, and ensures customer-focused quality in everything we do.

Guiding Principles.

Integrity: Conduct all affairs with integrity, for which courage is the foundation. Honor donor intent.

Compliance: Strive for 10,000% compliance with all laws and regulations, which requires 100% of employees fully complying 100% of the time. Stop, think, and ask.

Value Creation: Contribute to societal well-being by advancing the ideas, values, policies, and practices of free societies. Understand, develop, and apply Market-Based Management® to achieve superior results by making better decisions, eliminating waste, optimizing, and innovating.

Principled Entrepreneurship™: Apply the judgment, responsibility, initiative, economic and critical thinking skills, and sense of urgency necessary to generate the greatest contribution, consistent with the organization’s risk philosophy.

Customer Focus: Discover, collaborate, and partner with those who can most effectively advance free societies.

Knowledge: Seek and use the best knowledge and proactively share your knowledge while embracing a challenge process. Develop measures that lead to more effective action.

Change: Anticipate and embrace change. Envision what could be, challenge the status quo, and drive creative destruction through experimental discovery.

Humility: Exemplify humility and intellectual honesty. Constantly seek to understand and constructively deal with reality to create value and achieve personal improvement. Hold yourself and others accountable.

Respect: Treat others with honesty, dignity, respect, and sensitivity. Appreciate the value of diversity, including, but not limited to, diversity in experiences, perspectives, knowledge, and ideas. Encourage and practice teamwork.

Fulfillment: Find fulfillment and meaning in your work by fully developing your capabilities to produce results that create the greatest value.


Giving Back.

We’re passionate about how we treat our co-workers, our customers … and our community. Through financial support, fundraising, hundreds of hours of volunteer time, and event participation, we’re honored to help make a difference for a variety of worthy causes.

Helping Communities Thrive.

Giving back to our communities is an important part of the culture here at John Zink Hamworthy Combustion.


We strive for continuous improvement in the environment, health and safety (EH&S) performance of our operations. We maintain numerous industry certifications, underscoring our commitment to providing a culture of safety and compliance for all our employees.

EH&S Certifications and Authorizations.

  • OHSAS 18001: This certification of our Tulsa and Luxembourg facilities is evidence of our focus on identifying and eliminating workplace hazards while maintaining health and safety compliance.
  • VPP Star Certification: The Voluntary Protection Program recognizes our Tulsa facility as a location that shows a commitment to improved safety and health performance beyond the requirements of the OSHA standards, and has demonstrated safety performance considered best in class.
  • ISO 14001: Both our Luxembourg and Tulsa facilities meet the requirements for the internationally recognized ISO 14001 Environmental Management System.



We have a fundamental belief in continuous improvement through innovation. This focus drives us to implement world-class management systems that are recognized for meeting or exceeding industry standards in quality (ISO 9001).

World-Class Quality.

Quality Certifications and Authorizations:

  • ACCP Certified Welding Inspector Program
  • American Petroleum Institute—API-936 Refractory Inspection Personnel
  • ANSI/ISO 9001:2008 Quality System
  • ASME “S” Steam Boilers Authorization
  • ASME Section V Nondestructive Testing Program
  • ASME Section IX Welding Program
  • ASME “U” Unfired Pressure Vessels Authorization
  • AWS Certified Welding Inspector QC-1Program
  • NACE International—Coating Inspector Certifications
  • NBBI “R” Repair and Alteration Authorization
  • NBBI “NB” Registration Authorization