Combustion and Burners

Finding the most efficient combustion system for the job
Provided by Industrial Heating and Process Heating

Learning Objectives:

  1. Explain the benefits and drawbacks of natural-draft and force-draft burners.
  2. Describe how to specify burners and combustion for process heating based on different designs.
  3. List the trade-offs between efficiency and NOx emissions when it comes to direct-fired burners.
  4. Identify the ways in which control systems provide safety and operational efficiencies to thermal processing.


1.25 PDH
1.25 AIA LU/Elective
1 PDH*
BNP Media has met the standards and requirements of the Registered Continuing Education Program. Credit earned on completion of this program will be reported to Certificates of Completion will be issued to all participants via the online system. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the RCEP.
This course may qualify for continuing education through the NYSED. For further information, please visit the NYSED website at
This course may qualify for continuing education through the FBPE.

Below are a set of links to articles from Industrial Heating and Process Heating. Click on each link below to read the articles and then complete the quiz to earn your credit and certificate of completion.

Those involved with thermal processing have a variety of burners and combustion systems to choose from, but knowing which system will be the most efficient for the process isn't always easy. This course looks at the varieties and designs of burners, including pre-mix burners and nozzle-mix burners, as well as direct-fired combustion and indirect-fired combustion. It also will focus on natural-draft and forced-draft burners for process heating and explore the ways in which these systems can be applied and maintained to achieve efficiency.

Burners 101: Natural-draft burners
Understanding burner options and considerations is key to achieving efficiency and safety. Both natural- and forced-draft burners are utilized in millions of process heating applications throughout the world. Due to the generally low cost and minimal maintenance requirements, natural-draft burners tend to be the predominant choice of burner type, specifically in the upstream and midstream oil-and-gas industry.
Cameron Tidball

Specifying burners and combustion for process heating
Careful selection of burners and combustion controls ensures safer operations. The spectrum of applications found in the process industries means that burner designs must vary widely. When deciding on a process heating burner, it is important to take into consideration maximum input, required turndown, local codes, environmental concerns and operating application.
Jason Howard

Direct-fired gas burners for high temperature applications
There are a variety of heating options available for high-temperature applications, including different types of direct-fired gas burners. Direct-fired gas burners vary in design, which changes how they relate to complexity, cost and efficiency. There are also trade-offs between efficiency and NOx emissions, and there are ways to have a combustion technology that provides the best of both worlds.
Steven Mickey, Martin Schoenfelder, and Joachim G. Wuenning

Types of burners and combustion systems
The heat treater often has choices for burners and combustion systems when purchasing new equipment or rebuilding older furnaces and ovens. Understanding the basics of combustion and the best applications for pre-mix systems versus nozzle-mix systems will provide tangible benefits to the heat treater, including faster heat-up times and load recovery, greater efficiency, reduced pollution and cost savings.
Daniel H. Herring

Achieving combustion control
When properly selected and designed, control systems provide safety and operational efficiencies to thermal processing. Both burner management and combustion control systems are designed specifically to help ensure the safe, reliable operation of any critical thermal process. Given the inherent dangers associated with high temperature thermal processing in such applications, safety should never be a compromise.
John Becker


Industrial Heating Editorial Process Heating Editorial