The ST-5 is a multipurpose external-combustion engine designed for those who either cannot obtain grid electricity easily and economically or have realized the uncertainty of total dependence on utilities to supply their power needs. Virtually any combustible material is a suitable fuel for the ST-5. Among various acceptable fuels are wood, wood pellets, husks and chaff, peanut shells, weeds and hay, cotton waste, other agro-byproducts, and natural gas. Rugged and reliable, the ST-5 has no spark plugs, carburetor or fuel injectors and is much quieter than than an internal combustion engine.

The ST-5 is no longer produced in the U.S. If you would like more information about the ST-5, you can contact Stirling Engine Company in Japan at Ftezuka@aol.com.