Glass Works Stirling Engine

The Glass Works Stirling Engine features glass cylinders which expose the pistons at work! Look inside the glass cylinders and see the stirling engine in action! Fuel not included; please use methylated-spirits, i.e. denatured alcohol. Features: • Replaceable and adjustable Pyrex heat cap • Replaceable Pyrex power cylinder • Dual fuel capability Specifications: • Runs at 1500 RPM • Gyro-quality ball bearings, machined flywheel, sand cast frame, aluminum cooling fins and