Weil-McLain has announced that its Ultra Oil, WGO, WTGO, and SGO residential oil boilers are now certified for use with biofuel blends up to 20% (B20). This achievement has been made possible through collaboration with industry leaders Carlin Combustion and R.W. Beckett, as Weil-McLain validates the adaptability of their burners to the elevated blend of biofuel when combined with its popular oil-fired boiler product lines. This advancement underscores Weil-McLain's commitment to delivering sustainable heating options and driving environmental progress in the industry. A B20-compatible boiler is one that operates with a fuel blend consisting of 20% biodiesel and 80% traditional #2 fuel heating oil.

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