The Rotowent Dragon chimney cowl is a device, which, in a dynamic way, uses the force of the wind to increase chimney draught, and prevent downdraught. The cap always places itself in the opposite direction to the wind no matter of its strength or direction. It can be mounted on gravitation based chimney ducts, ventilation, flue and smoke.
The special patented rotating system has ball bearings, which are uniquely placed outside of the cap, enabling the Dragon to withstand temperatures up to a massive 500°C.
This high working temperature enables the Dragon to be used on wood burning stoves, even on short bungalow chimneys.
Please note that the Dragon Cowl is not suitable for use when appliances are used for slumbering solid fuels (smokeless) and coal.
The literature that comes with the Dragon cowl states that the cowl is supplied with 2 fins. This is incorrect. The cowl is supplied with just one fin, the wind, as shown in the images.
Inlet Diameter:- tba
Force In Tabs Diameter- tba
Base Material:- chrome - nickel sheet 1.4301
Cap Material - chrome - nickel sheet 1.4404
Max Working Temperature:- 500°C
Rotation system:- high temperature ball bearings placed outside of the cap.
Dragon Revolving Cowl Brochure
Great product This cowl has certainly solved our downdraught problem, pricey but well worth it. It looks good too. I originally ordered a totally inappropriate cowl but had no problems with the Company cancelling and advising which cowl I needed. This is what you would expect from a good company and this is one.
(06/01/2016) Patrick Webb - Sth. Lincolnshire
splendid cowl great product, great price and great service, I will be buying more.
(05/05/2016) Rylance Ltd - Jersey C.I.
First class This is a superb product. Great advice and service from flue experts and prompt delivery of a beautifully manufactured effective cowl.
(06/12/2016) John -
absolutely first class service and product bought this for a remote scottish cabin/bothy. great advice from seller, excellent product and it fitted easily. It looks like a piece of sculpture too. I was advised that if you are dealing with downdrafts, this is the cowl you need - having fitted one, I agree...
Dragon force in base 125mm this product is the dogs b.......ks great peace of craftmanship
(18/02/2018) KEN - BRENTWOOD ESSEX
The cowl is a perfect fit and we have no problems since it has been fitted. The heat in the AGA is more consistent since a strong wind used to take all the heat up the chimney.
(13/11/2018) M M - Scottish Borders