What a marvelous Science toy!
Put it on the cup which full with hot waters, give the flywheel a gently push, and get the flywheel going, and then it works like charm. All of your guests want to know what happened, ice-breaking success.

To be admired and to be talked more from your friends if you have this magic stuff.

Quick Start and Precautions:
1, Place the engine on a flat table and add hot water with more than 4/5 capacity of the cup into the flat cup with a mouth less than 88mm.
2, The engine will not start automatically. Under the premise of enough safety, place the engine on the mouth of the cup and heat it for about 20 seconds, then move the flywheel clockwise by hand until the engine runs.
3, It is forbidden to add oil into the engine cylinder, piston, bearing, connecting rod and other moving parts!
4, The engine can run with only a very small temperature difference between the top and bottom, anything hotter than boiling water will damage the device. Do not place it on any objects with high temperature (stove, wood burning fireplace, candle, etc.), otherwise many parts of the engine will be melted.The highest temperature to run the HZZ92 engine should not exceed 100°C(212°F).

HZZ92 Stirling Engine Features:
1，Micron precision Borosilicate glass cylinder and Graphite power piston,
2，Stainless steel screws
3，Low-profile heat insulated chamber pillars
4，Giving flat bottom and good surface contact with heat source
5，Both connecting rods are positively located using low friction POM and stainless steel screws
6，All airtight seals are made with high strength precision screw threads and nitrile O rings
7，Ultra low friction demagnetised and de-greased bearings, NO lubrication required
8，Fully CNC machined, giving crisp, clean and tidy edges all over

Package List:
1 x Stirling Engine
1 x User's Manual

Product Dimensions	9.19 x 13.28 x 9.19 cm; 281 g
Manufacturer recommended age	16 years and up
Item model number	HZZ92-BK
Educational Objective(s)	STEM
Number of Puzzle Pieces	1
Assembly Required	No
Batteries Required?	No
Batteries Included?	No
Material Type(s)	Stainless Steel,Aluminum
Remote Control Included?	No
Color	Black
ASIN	B0B6T147ZL

HZZ92 Low Temperature Stirling Engine DIY Heat Education Model Class Teaching Brass Aluminium Stirling Engine Low Friction Graphite Piston for Adults Desktop Toy Gift for Engineer-Black

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