chimney cowl dragon no more downdrought

new.24 month warranty size from 150mm to 300mm. perfect for insulated chimney flu The Rotovent Dragon 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 its strength or direction and stop water leaks inside insulated pipes . 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 coal burning and multi fuel stoves, even on short bungalow chimneys. size available from 150 to 300mm ALL ireland servis , paypal. Cheque or bank payment free delivery in ireland 0857840723 CE Approved https://www.youtube.com/watch?v=yYvrQdqYgcE