The engine works well. It noisier than I had expected.
I enjoyed this product as it was simple to assemble and very cool to see it in action. By the way, this is the metallic version. For a cheap price, definitely recommended.
While this little marvel works when put over hot water but it is better for you to discovery what happens exactly because why cheat with of all things, this wheel gimmick. The wheel sipping gimmick gadget is great!
The Stirling engine is beautiful, works perfectly, and is fascinating to watch.
Really pleased with the engine. Dad probably likes it better than my son!