Paving the way for a more climate-conscious future, hydronic comfort heating solutions pioneer - 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 100% (B100).
This achievement has been made possible through collaboration with industry pioneers - R.W. Beckett and Carlin Combustion, 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.
Weil-McLain’s commitment
Weil-McLain’s duty to give sustainable heating options and drive environmental gain in the industry
This advancement underscores Weil-McLain’s commitment to delivering sustainable heating options and driving environmental progress in the industry.
A B100 compatible boiler is one that operates with a fuel blend consisting of 100% biodiesel. Biodiesel is a renewable fuel made from organic materials, such as plant and vegetable oils, animal fats and used cooking oils.
B100 with a certified oil boiler
“Weil-McLain boilers that are B100 certified are designed to operate on this blend of biodiesel fuel with the approved Beckett and Carlin burners,” said Mike Boyd, Product Manager with Weil-McLain, adding “These compatible burners have seals and components designed to optimize operation when using biodiesel.”
Using B100 with a certified oil boiler can help reduce greenhouse gas emissions because biodiesel is a cleaner-burning fuel than petroleum diesel that can provide similar performance, while significantly limiting how much carbon dioxide is released into the air.
Other benefits of a B100 certified boiler
Other benefits of using a B100 certified boiler include:
- Renewable energy source: Biodiesel is made from renewable sources, meaning it can be continually produced by a steady supply of raw materials. By utilizing biodiesel in a B100 blend, the dependence on finite fossil fuel resources can be reduced.
- Energy security: Incorporating biodiesel into a fuel mix diversifies energy sources and reduces dependence on foreign oils and petroleum. This can contribute to enhancing energy security and reducing vulnerability to supply disruptions.
- Government incentives: In some regions, there may be government incentives, grants or tax credits available for using biodiesel.
Rewards of a federal tax credit
Homeowners interested in upgrading to one of these units can reap the rewards of a federal tax credit
In addition to these benefits, homeowners interested in upgrading to one of these units can reap the rewards of a federal tax credit.
Weil-McLain is a Qualified Manufacturer (QM), and its residential oil water boilers with an 87% AFUE rating installed between January 1, 2025, and December 31, 2025, can be claimed for up to $600 after meeting federal requirements.
Eligible homeowners must include the four-digit QM code of “46H2” when completing their taxes for 2025 using tax form IRS Form 5695, Residential Energy Credits (the QM code may be used in lieu of a product identification number (PIN)). This tax credit can also be used in conjunction with any local ENERGY STAR® rebate programs.
Reducing carbon emissions and environmental impact
“Our new B100 certified boilers mark an important milestone in our commitment to a sustainable future,” said Mike Boyd, adding “By embracing biodiesel technology, we are not only reducing carbon emissions and environmental impact, but also paving the way for a more resilient and renewable energy landscape.”
He continues, “This exciting development highlights our dedication to innovation and positions us as a pioneer in providing energy-efficient solutions that shape the future of heating while making a positive impact on the planet.”
Ideal solution for residential applications
Weil-McLain’s oil-fired boilers are an ideal solution for residential applications. Available for both water and steam systems, these high-efficiency units are rugged and reliable – providing peace of mind comfort heating for years to come. The Ultra Oil is the industry’s premium “commercial-grade” residential boiler featuring an easy-to-clean, three-pass heat exchanger.
The WTGO is the perfect boiler for customers seeking an “all-in-one” space and domestic hot water heating appliance, while the SGO (steam) and WGO (water) are great for easy inspection and service due to their quick-open tops and swing-away burner doors that provide full chamber access.
