A Stirling engine fan is a miniature engine used on top of a wood burner or multi-fuel stove to spread the warm air (generated by the wood burner) around a room.
A Stirling engine does not require any electricity to operate and it doesn’t have any electrical components in its construction. The engine works by moving a sealed volume of air from the hot bottom plate to the cool top plate of the engine. As the air moves from the cool plate to the hot plate it is rapidly heated, it expands and pushes the piston up. As the air is moved from the hot plate to the cool plate it cools rapidly and contracts, this creates a vacuum which pulls the piston down. This same volume of air is rapidly heated and cooled many times per second. As the piston is connected to a crank shaft it causes the crank to rotate and this produces the mechanical power to rotate a propeller.
The propeller spreads the warm air around the room resulting in increased heating efficiency, improved comfort and a reduction in heating costs. High power output and low start up speeds result in the movement of large volumes of warm air.
The intricate details and mechanical operation make Stirling engine fans highly desirable. Frequently described as ‘mechanical art’, these engines work silently and reliably because there are no electrical components to burnout. Built from durable materials such as stainless steel, brass and aluminium, these robust machines require tremendous precision when constructed. For this reason they are usually hand-built and availability is limited to very few manufacturers.
Please visit Warpfive Stove Fans to view our range of beautifully hand built Stirling engine stove fans.