This fully functional stirling motor demonstrates the direct conversion of heat into kinetic energy it is powered by external conduction of the heat produced by an ordinary tea light the kit comes in a box which is used to create the motor housing all the parts required to build the stirling motor kit are included the motor can be fitted using simple tools such as screwdrivers and pliers with no need for gluing the construction time required is 2 3 hoursfunctionsthe displacer plate in