Overview
ISO 22967:2010 - Forced draught gas burners provides standardized terminology, test procedures and general requirements for automatic forced‑draught gas burners fitted with a combustion air fan. The standard applies to automatic gas burners (including total pre‑mixed and nozzle‑mixed designs), single‑chamber burners, single‑fuel and dual‑fuel burners when operating on gas, and the gas function of simultaneous dual‑fuel burners. It excludes direct‑fired process burners where combustion‑chamber wall temperatures exceed 750 °C or heat‑transfer medium temperatures exceed 500 °C.
Key topics and technical requirements
- Terminology and definitions: clear definitions for forced‑draught burner, integrated ignition, start gas rate, combustion chamber and related gas properties (e.g., calorific value, Wobbe index, reference conditions).
- Construction and operational requirements: mechanical and functional design elements required for safe, repeatable operation of burners with combustion air fans.
- Control and safety devices: requirements for ignition, flame monitoring, automatic on/off sequencing, safety shut‑offs and valve proving consistent with gas‑burner safety practice.
- Test methods and procedures: functional tests, combustion tests (including CO and NOx guidance in Annex A), start‑up checks, electrical safety and performance verification.
- Marking, labelling and documentation: mandatory data plate information and instructions for installation, commissioning, maintenance and operation.
- Sequencing and diagrams: defined sequencing times, working/test diagrams and examples of control‑box sequencing (informative annexes).
- National/regional requirements: normative and informative annexes addressing requirements specific to USA, Europe, Japan, Australia and Korea.
Practical applications - who uses ISO 22967:2010
- Burner manufacturers designing and certifying forced‑draught gas burners for commercial and industrial heating equipment.
- Appliance manufacturers integrating burners into boilers, heaters or heat generators to ensure compatibility and compliance.
- Test laboratories and certification bodies performing performance, combustion and safety testing per standardized procedures.
- HVAC and combustion engineers specifying burners, performing commissioning and troubleshooting.
- Regulatory authorities and safety inspectors assessing conformity with international best practice for gas‑burner safety and performance.
Related standards (if applicable)
- ISO 22968 - Forced draught oil burners (for liquid fuel operation of dual‑fuel units)
- ISO 23551 series - Safety and control devices for gas burners (automatic valves, regulators, gas/air ratio controls)
- IEC/ISO electrical and control standards (e.g., IEC 60335, IEC 60730, IEC 60204) referenced for electrical safety and automatic control requirements
ISO 22967:2010 is essential for ensuring safe, reliable and testable forced‑draught gas burner products and installations while supporting regulatory compliance and consistent performance across markets.