Dunphy’s range of industrial burners is designed to support a variety of applications, from heat and steam systems to process applications and incineration. With capacities ranging from 100 kW to 60 MW, our burners are suitable for all types of gas-fired, steam, and incineration boilers, as well as furnaces.
Since Malcolm Dunphy patented the first axial airflow burner in 1971, we have been at the forefront of energy-efficient combustion technology. Today, our ultra-low NOx burners deliver high-efficiency, low-emission solutions tailored to meet the demands of diverse industrial applications.
Dunphy burners are equipped with advanced controls for optimal performance, energy efficiency, and emissions reduction. They are designed to operate on a wide range of fuel types, including: hydrogen, biogas, natural gas, liquid gases, light fuel oils and heavy fuel oils
An industrial burner is a heating device that generates and controls a flame for industrial processes. It mixes fuel and air in precise ratios to achieve efficient combustion. Industrial burners are used in applications such as industrial steam boilers, furnaces, and ovens in industries like manufacturing, food processing, and power generation.
Industrial burner systems work by mixing fuel and air in controlled ratios to produce a stable and efficient flame. A blower or compressor supplies air, while a fuel valve regulates the fuel flow. The mixture ignites through a spark or pilot flame, generating heat for industrial applications like boilers and furnaces.
We offer three types of burners to suit various industrial needs:
Dunphy burners are highly flexible and compatible with a wide range of fuels, including: (link to these sections as in the current site structure)
Low NOx Combustion
All T-series burners come equipped with low NOx combustion heads as standard, ensuring compliance with emissions regulations.
High Turndown Ratios
Burners achieve up to 12:1 turndown on gas, 4:1 on oil, and 8:1 on oil-fired steam with air atomisation, ensuring efficient operation across varying loads.
Digital Modulation
Fitted as standard, digital modulation ensures high accuracy of control, optimising performance and reducing fuel consumption.
Thorough Testing
Every burner is rigorously tested in our R&D test lab before dispatch, ensuring maximum reliability and performance.
Made in Britain
Designed, manufactured, and assembled at our UK factory, ensuring the highest standards of quality.
Low Noise Operation
The axial airflow design encapsulates the motor and fan within the casting, significantly reducing operational noise levels.
While Dunphy burners are often customised for specific applications, we also offer a range of off-the-shelf features that enhance performance and emissions control:
Oxygen Trim
Adjusts the fuel/air ratio to maintain minimal excess oxygen, enabling consistent combustion with oxygen levels of 2-2.5% across the turndown range. This compensates for fluctuations in fuel calorific value, temperature, and pressure.
CO Trim
Continuously reduces air supply, enabling the burner to operate safely at sub-1% oxygen levels, maximising efficiency while preventing CO formation.
Flue Gas Recirculation (FGR)
Achieves ultra-low NOx emissions of less than 30 mg/Nm³ on gas and 100 mg/Nm³ on oil, enhancing environmental compliance.
Multi-Nozzle Head
Allows for dual or triple fuel configurations, enabling the burner to use multiple fuels either simultaneously or independently.