Low Temperature Difference Black Stirling Engine DIY Toy Gift Decor Collection

Stirling engine is powered by air expanding with heat and air contracting with cold. This is an external combustion engine,to burn the fuel continuously,the expanding air(or Helium)will work as a media to run the piston,then the expanding air will be cooled in cold chamber,it will be repeatedly circulating this process. Description: Name:Stirling Engine Model Material:Plastic Color:Black Size:100x132mm/3.9"x5.2" Instructions: Safe start up steps: 1.Put the engine model on the horizontal position. 2.Gently turn the flywheel to check if it rotate smoothly;if there is a strong feeling of jerky,please check if the rod connects properly.Then gently turn the flywheel until it rotates smoothly. 3.Put hot water into a container,then put the engine's button plate(great circle)on the container(or on any other heater which does not exceed 80);After few seconds, turn the flywheel gently until it can rotate automatically. Safe end step: After the end,please pour out the water,to avoid anything be wet by accidentally. Note: -This engine is perfectly for kids over 12 years old. -This item is operating by steam, when the steam too much, the engine will stop working. Package include: 1 x Stirling Engine model