Welcome to a Cleaner Future

ClearStak, LLC is a privately held environmental engineering company located in Willington, CT. Our products reduce visible emissions from the combustion of biofuel through the technology of our Intelligent Biofuel Controller and the chemistry of catalysts.

"If you already operate...smaller wood boilers, EPA recommends you continue to consider technology retrofits and other strategies to reduce air pollution from the unit." —EPA Briefing Paper, January 2009