Vermont groups hope to fire up wood boiler industry

David Frank, co-owner of SunWood Biomass, shows the chute through which wood pellets are delivered to Susan Clark’s home in Middlesex. Photo by Elizabeth Gribkoff/VTDigger
MIDDLESEX — Renewable energy advocates are pushing a 21st century upgrade to an ancient technology — wood heating — as as a way to meet Vermont’s renewable energy goals while revitalizing the state’s struggling forest economy.
Susan Clark purchased a pellet boiler a few years ago to replace