How do they work? Place the Stirling engine on top of a heated surface and let it warm up. Once the air inside the cylinder has heated at the base of the engine, it is forced up by the displacer to the cool top plate. As this sealed volume of air moves from the warm base to the cooler top plate, it expands and contracts. While it expands it pushes the piston up; and when it contracts it pulls the piston down. The piston is connected to a crank shaft and the oscillating cycle rotates the crank.

Because Stirling engines are very precise little devices, they need to be built with extra care and attention. However the effort is greatly rewarded when the crank rotates and the engine begins to work - this is when the engine produces mechanical power. Industrial Stirling engines produce so much mechanical power that they are used in cryogenic refrigeration, submarine propulsion, and electrical production. At Warpfive Fans... we use the power to spin a fan blade. Our stove fans are so efficient that you can reduce your fuel usage by up to 22%, and heat your narrow boat up to 40% faster.

thermodynamic mumbo jumbo…

Now you know what a Stirling engine is. But why complicate life by delving into this world of thermodynamic mumbo jumbo? The answer is simple really – at Warpfive we care about our planet. Efficient thermodynamic management systems are the future.

Stirling engines are highly compatible with alternative and renewable energy sources. They are extremely efficient, work quietly and can be used on almost any heat source. The Stirling engine is currently exciting interest as the core component of solar powered electricity generators, as well as in the space industry to power satellites.

At Warpfive we’ve gradually expanded our range of Stirling engines to include a variety of stove fans for use on top of your log stove or diesel heater, as well as aroma diffusers and table fans for use in your home. However we still spend an enormous amount of time researching emerging technology and examining the performance of low-emission alternative power sources. Why? – Because we are on a constant drive to improve our products by making them even more efficient.

Over the last 13 years, our ‘Stirling idea’ has evolved into a small family run business. We design and hand-build all of our products here in the UK, whilst always aiming to make a positive contribution to our planet.

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