BTEC Announces Validation Testing on Biomass Boiler Efficiency Test Method

WASHINGTON, DC – August 11, 2017 – Today, the Biomass Thermal Energy Council (BTEC) announced that validation testing of its biomass boiler efficiency protocol will begin in September 2017 at ClearStak LLC, a Connecticut-based testing laboratory.  “We are pleased to be partnering with ClearStak LLC on this next important phase of the project.  Being an EPA- accredited laboratory, this brings third-party credibility to the process, as we continue to hone the protocol prior to final publication,” Jeff Serfass, BTEC Executive Director, said.
In late 2016, BTEC released the first draft of an American test method for the thermal efficiency of commercial-sized biomass boilers. This includes boilers that use as a fuel stock solid biomass, including pellets, chips, briquettes, and cordwood.  “The test procedure is built upon European standards, past efforts in the United States to develop standards for biomass-fired heating equipment and US standards for oil and gas-fired boilers,” said Bede Wellford, Renewables Sales Manager at Viessmann Manufacturing Company (U.S.), Inc., and chair of the BTEC Technical and Regulatory Affairs Committee. The draft standard is available on BTEC’s website,
The test method will facilitate the evaluation of the benefits of properly sized biomass boilers, and will closely examine boiler performance at partial load points.  “The validation testing of the BTEC draft protocol will be done on a boiler already tested to the European standard EN-303-5.  It is our intention to compare efficiency and emissions test results at various firing rates, load conditions and start-up operations, both with and without thermal storage.” David Bancroft, BTEC Technical Engagement Manager, said.
Once validation testing is completed, and recommended changes to the test method are considered, the test procedure will be published as a voluntary industry document and continue to be publicly available. BTEC will subsequently pursue formal acceptance of the protocol by an accredited national standards organization.
Work on the project is supported by the U.S. Endowment for Forestry and Communities, the West Penn Power Sustainable Energy Fund, and the Massachusetts Department of Energy Resources.
An overview of the project and more information about biomass thermal energy systems is hosted on BTEC’s website at
The Biomass Thermal Energy Council (BTEC) is an association of biomass fuel producers, appliance manufacturers and distributors, supply chain companies, and non-profit organizations that view biomass thermal energy and combined heat and power as renewable, responsible, clean, and energy-efficient pathways to meeting America’s energy needs and strengthening local economies. BTEC engages in research, education, and public advocacy for the fast-growing biomass thermal energy industry. Read more at or contact Jeff Serfass, Executive Director, at 202-596-3974 or
The U.S. Endowment for Forestry and Communities (the Endowment) is a not-for-profit public charity working collaboratively with partners in the public and private sectors to advance systemic, transformative, and sustainable change for the health and vitality of the nation’s working forests and forest-reliant communities. For more information, visit, or contact Carlton Owen, President and CEO, at 864-233-7646, or
The West Penn Power Sustainable Energy Fund (WPPSEF) is a 501(c)(3) nonprofit organization which invests in the deployment of clean energy technologies throughout the West Penn Power service region in Pennsylvania. Investments are made to promote: the use of renewable and clean energy, energy conservation and energy efficiency, and the attraction, establishment and retention of sustainable energy businesses. Visit for more information. For more information, contact Joel Morrison, Executive Director, at 814-441-1100, or
The Massachusetts Department of Energy Resources (DOER) develops and implements policies and programs aimed at ensuring the adequacy, security, diversity, and cost-effectiveness of the Commonwealth’s energy supply to create a clean, affordable and resilient energy future. For more information, visit, or contact Ted Dobbin, Renewable Energy Coordinator, at 617-626-7379, or