The Twinspeed Stirling engine stove fan is the best fan for large rooms because it has an exceptionally high air output – in excess of 442 CFM (cubic feet per minute) of air.
It’ll work on any cool to high heat wood stove or multi-fuel stove surface and has a start-up temperature of 120° C (248° F).
Named the Twinspeed for its twin piston cylinders, it provides high performance with maximum airflow.
When you use a Twinspeed Stirling engine stove fan you can reduce your wood usage by up to 22% and heat your room up to 40% faster.
If you are the owner of a diesel stove, please read advice on the FAQs page.
Stirling Engine Design
Warpfive stove fans are small precision engineered Stirling engines, which are 100% mechanical and do not have any electric components which may stop working if overheated. Consequently they are extremely reliable and with care will last a lifetime. Find out more here
Every engine is precision engineered and hand built with durable materials like stainless steel, aluminium, brass and Borosilicate glass. As a result they operate quietly – typically 28dB.
Advanced materials (such as graphite) and low friction bearings ensure low maintenance, plus heat flow is optimised with a silver thermodynamic heat plate.
Stirling engine stove fans have a high power output and low start up speed so they move large volumes of warm air.
Every engine is hand-crafted, assembled and tested in Great Britain.
WARPFIVE 22/23 – NEW RANGE EXPLAINED
At Warpfive we are constantly striving for performance perfection so we are delighted to bring our latest range to you. Please take a look at the new product images to view the design modifications which include –
- Bearing cartridge system offering reduced friction and ease of replacement – read more here
- CNC acuminated aluminium posts for improved thermodynamic performance
- Additional two main bearings for even smoother operation
- A shortened, light-weight composite crank for higher RPM and increased power
- A knurled rear knob for easy handling plus used as an alternative engine starter
Best stove fan for a large room - Twinspeed
- Twinspeed Stirling engine fan with twin cylinders
- High performance Stirling engine with solid stainless steel base for improved thermodynamics
- Start-up temperature 120° C (248° F)
- Maximum stove top temperature 450° C (842° F)
- Circulates in excess of 442 CFM (cubic feet per minute) of air
- Uses a large 4 blade high aspect ratio fan (285mm, 11.2 inch diameter) to circulate maximum air at low RPM
- Light weight composite crank
- Operation is quiet – typically 28dB
- Stainless steel displacer and regenerator boost performance
- Dust Cover & maintenance kit included
- 3-year manufacturer’s warranty
- Overall height: 325 mm/12.8 inches
- Base dimensions: 110 mm/4.3 inches
- Weight: 1.8 kg/3.97lbs
- Fan diameter: 285 mm/11.2 inches
Submit your review
Received my Warpfive Twinspeed fan a week ago but couldn't try it out as was wanting to give the wood burner a clean and reseal around the flue connection.
Got that completed today and tried out the fan, really impressed with how smooth it is. I would recommend this fan to anyone, precision engineered and worth every penny.
Received the Twinspeed today. When I was unboxing it, I could immediately feel the quality craftsmanship. I was hoping to receive it before it started to get cold. Shipping was very fast! Received the tracking number, and received it in 4 days (US).
Haven’t tried it yet, but when I do, I feel it will circulate the warm air in my living room.
If I may make a suggestion for the dust cover. Maybe make a cover out of high-temp pyrex, or plastic that could withstand a hotter temperature. I think I have enough space on top of my wood-burning stove to position it so the temperature won’t affect the cover.
I will update my review after it has run a few night.
I just want you all to know that I’m extremely pleased with your product!!! Shipping to the USA was super quick-(4 days) with a tracking number so I knew when it would arrive. The quality and craftsmanship is more than I expected. This fan will pay for itself in about 2 years and will last for many years, probably generations. A YouTube channel called Wranglerstar showed, in detail this very same fan that he had in his shop, I was instantly interested and determined to get one. Thanks Again, from across the pond.
Recieved my twinspeed and glasshopper stove fans last week. Arrived after their long journey in excellent condition, nice to see the packaging is recycled/recyclable materials. The engineering and construction of these fans is second to none. Work like a dream and very quiet! Thoroughly enjoy watching them in action, almost mesmerizing. ????? from me.
It is a beautifully made fan and its appearance is modern, stylish and effective.
As the twinspeed fan was to be a Christmas present (for myself) and I had no idea of delivery time, it was ordered in plenty of time. It was delivered very promptly, so had to be kept under wraps for the best part of the month. It is beautifully crafted. I note that the fan is direct drive with a bigger fan rather than a geared-up belt drive as illustrated. I think this is more elegant and avoids the procurement of replacement drive belts. We have used a thermo-electric fan for some years. That is rather smaller and operates at lower temperatures, but is nothing like as interesting in operation. Placement of the Twinspeed is more critical because of its relative size but can be accommodated within the footprint of the stove top, fortunately there is no flue to beware of. I have yet to work out how to realistically compare the performance of the two fans, but the real beauties of the Twinspeed is its aesthetic appeal and as a demonstrator of the principle of the stirling cycle and, hopefully, a teaching aid for some of the laws of thermodynamics, I look forward to the grandchildren being old enough! Congratulations on a beautiful little machine. I look forward to many years of service.
THANKYOU. Fast, accurate and a truly excellent experience in dealing with you from the first phone call to the delivery. The Twinspeed is everything your website and YouTube hinted at. A great addition to heating our house and it’s also good enough simply to stare at!!