Predicted number of annual explosions due to natural gas and hydrogen heating systems in residential buildings in Great Britain as of 2021, by event type*
Characteristic
Natural gas (methane)
Hydrogen (ignition base case)
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* Ignition probabilities found through quantitative risk assessment study evaluating the ignition potential of hydrogen-air mixtures via household electrical items and a comparison with the ignition potential of methane-air mixtures.
Forecast based on a study of 62 incidents reported between April 2016 and March 2020.
More information regarding the methodology can be found .
Citation formats
Natural gas and hydrogen heating systems' explosion risk in Great Britain 2021
Using hydrogen in existing domestic natural gas heating systems without additional control measures presents an increased risk of explosions. For instance, kitchen and whole downstairs explosions would become over **** times more likely when using hydrogen as a heating gas. This is directly related to the ignition potential of natural gas and hydrogen. These conclusions were based on a quantitative risk assessment study, which analyzed ** incidents in Great Britain between and .
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Hy4heat. (May 1, 2021). Predicted number of annual explosions due to natural gas and hydrogen heating systems in residential buildings in Great Britain as of 2021, by event type* [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 20, 2026, from /statistics/1258640/explosion-risk-for-natural-gas-hydrogen-heating-systems-by-type/
Hy4heat. "Predicted number of annual explosions due to natural gas and hydrogen heating systems in residential buildings in Great Britain as of 2021, by event type*." Chart. May 1, 2021. ÌÇÐÄÆƽâ°æ. Accessed July 20, 2026. /statistics/1258640/explosion-risk-for-natural-gas-hydrogen-heating-systems-by-type/
Hy4heat. (2021). Predicted number of annual explosions due to natural gas and hydrogen heating systems in residential buildings in Great Britain as of 2021, by event type*. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 20, 2026. /statistics/1258640/explosion-risk-for-natural-gas-hydrogen-heating-systems-by-type/
Hy4heat. "Predicted Number of Annual Explosions Due to Natural Gas and Hydrogen Heating Systems in Residential Buildings in Great Britain as of 2021, by Event Type*." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 1 May 2021, /statistics/1258640/explosion-risk-for-natural-gas-hydrogen-heating-systems-by-type/
Hy4heat, Predicted number of annual explosions due to natural gas and hydrogen heating systems in residential buildings in Great Britain as of 2021, by event type* ÌÇÐÄÆƽâ°æ, /statistics/1258640/explosion-risk-for-natural-gas-hydrogen-heating-systems-by-type/ (last visited July 20, 2026)
Predicted number of annual explosions due to natural gas and hydrogen heating systems in residential buildings in Great Britain as of 2021, by event type* [Graph], Hy4heat, May 1, 2021. [Online]. Available: /statistics/1258640/explosion-risk-for-natural-gas-hydrogen-heating-systems-by-type/
