UL Includes B20-B100 in Standard for Safety Testing

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Underwriters Laboratories published an update to include B20 to B100 in its UL296 standard for safety testing liquid-fuel-fired burners, reports the National Oilheat Research Alliance.

Prior to the update, the UL standard included procedures for evaluation of burners for use with biodiesel blends up to B20. The updated standard includes the procedure and requirements for burners up to B20, including endurance of elastomers and seals in extended exposure to the fuels. Additionally, the updated standard has added a unique new test in which a burner is set up for use with B100 as per manufacturer specifications. The fuel is then switched to heating oil without biodiesel included (B0), and no burner settings are modified. The burner still needs to operate cleanly and safely after this fuel change.

NORA reports on its website that the updated standard “has been eagerly awaited by the liquid fuel heating industry as it allows for the development and market introduction of heating appliances rated to run on 100% low-carbon biodiesel, drastically reducing the carbon emissions of home heating systems.”

A number of industry entities have been working towards the update of UL296, including NORA, Clean Fuels Alliance, Carlin Combustion Technologies and R.W. Beckett Corporation.

Michael Devine, NORA’s president said, “This standard update is most welcome as it accelerates the liquid fuel industry’s conversion to low-carbon home heating. The ever-increasing blends of biodiesel in our fuel eliminates more and more carbon, making liquid fuel heating an essential component in addressing climate change. Amending UL 296 allows liquid fuel appliance manufactures to provide equipment that aligns with the public policy requirements for carbon reduction. NORA has been able to demonstrate that a home heated with 100% biodiesel using solar panels to produce its electricity can become a Net-Zero home quickly and at an economically viable cost.” The update to standard UL296 was published by UL on November 14, 2022, according to an announcement on the NORA website.

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