Fluidized Bed Combustion

Although it's a method typically used in large power plants, individual inventors like the author were conducting successful experiments with efficient small scale fluidized bed combustion in the 1970s.

065 fluidized bed combustion - small scale demonstration
This fluidized bed combustion unit is a scaled down—and easily understandable—version of a multimillion-dollar technology.
PHOTO: JAMES GOLDEN