Warpfive Fans Blog

Stove Fans and Stirling Engines

Warpfive Twinspeed Stove Fan (Stirling engine)

October, 25, 2017, By admin | Leave a reply

The Warpfive Twinspeed Stove Fan is the most powerful Stirling engine we produce. This premium engine moves an impressive 440 CFM (cubic feet per minute) of air. Named the Twinspeed for its ‘twin’ piston design, this stove fan will start working at 120° C (248° F). In addition to double pistons, the Twinspeed includes dual pulleys and a belt mechanism, ensuring higher propeller speeds and superior performance. The propeller is 220mm (8.6 inches) in diameter.

Twinspeed Stove Fan showing twin graphite pistons in glass cylinders

Twinspeed Stove Fan close up


The Twinspeed comes with a stainless steel base which provides improved thermodynamic properties. Furthermore it has a stainless steel displacer and regenerator which both boost performance. The stainless steel base is extremely attractive and the added weight provides additional stability.

When you order a 2017 Warpfive Twinspeed Stove Fan you will also receive an attractive dust cover. The dust cover is a beautiful clear dome which can be used while the engine is in use. Not only does it enhance the beauty of the engine, it also assists in keeping the stove fan ash / dust free. The dust cover is a useful addition when you clean your stove as it helps to prevent air borne ash contamination, and it can also be used to protect the engine while in storage during the summer months. In addition, you will receive a comprehensive tool kit which includes all the essential items for maintaining your stove fan on a seasonal basis.

The Warpfive Twinspeed Stove Fan

Twinspeed Stove Fan with dust cover

Additional features

The Warpfive Twinspeed Stove Fan comes with a Lifetime Guarantee. This guarantee can be registered with Warpfive Stove Fans online by simply recording the engine’s unique serial number. Every engine has its own individual serial number laserprinted on the top plate.

This beautiful Stirling engine is precision engineered from durable materials such as stainless steel, brass and alumimium. Its exceptional performance is optimised with a silver thermodynamic heat plate, precision bearings and other advanced materials such as graphite. The glass piston cylinders and low friction bearings ensure quiet operation and low maintenance.

The Twinspeed Stove Fan is hand-crafted, assembled and bench tested in the United Kingdom.

  • Mike Still

    PLEASE provide details of best price for this model and also a comparison with the side winder
    thank you

    • KozaimCrant

      [Comment marked as spam]

      0 votes
  • Warpfive

    Thank you for your enquiry.
    The Warpfive Twinspeed Stove Fan is a premium high performance engine with TWO piston cylinders. If you look at the photographs of the Twinspeed, you will see the two glass piston cylinders on the top plate. This makes the Twinspeed exceptionally powerful and able to move in excess of 440 CFM (cubic feet per minute) of air. It starts at 120 C. It also comes with the dust cover as standard.
    The Sidewinder has similar characteristics to the Steelhead Stove Fan. It only has ONE piston cylinder and will move 320 CFM (cubic feet per minute) of air. It starts at 110 C.
    Hope this helps!