This fits your. Make sure this fits by entering your model number. Package Includes: 1 x Low Temperature Difference Magnetic Stirling Engine Just a cup of warm boiled water can make it rotation.It also can be heated by heat sources such as light, heat, solar energy. Can be used for teaching purpose. What is the Stirling Engine? A Stirling engine is a heat engine that operates by cyclic compression and expansion of air or other gas, the working fluid, at different temperature levels such that there is a net conversion of heat energy to mechanical work.The engine is like a steam engine in that all of the engine's heat flows in and out through the engine wall.