Coal remains the most stable low-cost source of energy, but its lower qualities challenge users to meet stringent environmental regulations. The first step in any modification or fuel switching of a ...

For those who want to burn cordwood, modern wood-gasification boilers offer mid-80 percent steady-state combustion efficiencies and full-cycle efficiencies in the 70-75 percent range. This is much ...

Almost 40 years ago when my company Stadler Corporation introduced one of the first residential European wood boilers to New England, they were elementary in design and in their infancy of wood ...