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:- 144mm
Force In Tabs Diameter- 158mm
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 Design Nothing can touch the Dragon when it comes to temperature. The bearing is on the top of the cowl, away from soot and high temperature fumes, so it can withstand a massive 500°C. It doesn't revolve, but it positions itself with the opening in the opposite direction from prevailing winds.
(06/05/2011) fluesystms.com - High Wycombe
Quality A well designed product made with quality materials and workmanship. It may seem to some that its a bit expensive but it beats painting the house every 6 weeks and it is value for money.
(14/03/2012) - North West Wales coast, WINDY
Cured the down draft! We had an all weather cowl that blew smoke back when the wind was in a certain direction. After fitting the Dragon this problem was completely resolved and we also found that the fire burnt better. Highly recommend this product.
(09/04/2013) - MK
an frist class product had terrible down draft when wind came from southwest over naighbouring house now cured, great.
(18/04/2013) jim Grieves - speenymoor Co Durham
It is to be believed I'm pretty sceptical when people rave about products and how great they but this is absolutely fantastic. I live in the fens and down draughts have been a nightmare. It was very easy to fit and the results are nothing short of incredible. Not a single problem since it went in. Well worth the money.
(11/10/2013) Peter Vasey - Ely
A really great product ! Very easy to fit.... It took longer to get up there !
Occasionally we would have problems lighting our woodburner
but the Dragon has put paid to that.
Very happy with this product both the design and build quality.
Perfect solution The Rotovent is the second one I have purchased as they work brilliantly not one blow back at all in very bad conditions.
(08/11/2013) Arthur Coleman - North Wales
Seems to be working a treat! I have always had downdraught issues with my Rayburn flue, the CO monitor has worked overtime for years. With a dragon on my roof, the problem seems to be solved! I am a dragon lover, so I am very happy. Even in the recent storms, my monitor was silent. Highly recommended, it looks great too! xXx
(08/11/2013) Black Dragon Annie - Wales
Dragon wind beater If you suffered like me with problem lighting fire, unable to adjust from max and down draft I can honestly say the dragon is a true miracle. It has transformed my fire, now easy it light, adjustable and burns with I lovely orange glow.
I just wish I had had it 2 years ago.
(02/02/2014) Carl - Chesterfield
DRAGON COWL We live in a very exposed area in a bungalow with the standard short flue down draught issues. The dragon is our new best friend and everyone with a stove should have one!. Currently 75 mph winds outside and not a c/o alarm or fire smell,100% perfect!!.
Great customer service and bang on advice A+