ROTO COWL The Roto Cowl is an all fuel anti-downdraft chimney cowl and ventilator. Tested and certified to BS715:1993 for all gas fires.
The multi fuel Rotorvent is a revolving cowl and ventilator which solves the problem of downdraught and can be used equally well for ventilation. Technical breakthroughs in spindle design and fin fixing make this stainless steel cowl the strongest and most durable around - and the high performance of the strong 316 grade fins produces excellent draw in the chimney or ventilation shaft.
Using a unique one size base, the Rotorvent fits flue and pipe sizes from 150-250mm and can be used as a fixed product. The tried and tested hookbolt method of fixing ensures a strong grip, and the base incorporates screw holes for additional security or when fixing to a flat surface.
An integral rain lip helps prevent water ingress and twin enclosed bearing races filled with high temperature grease ensure maximum performance for many years.
We're so confident of the Rotorvent, it is offered with the famous Colt Cowl unconditional money back guarantee if it fails to solve your problem
completely.
Performance
The Rotorvent has been designed with over 70 years experience of the aerodynamics of chimney cowls. It was developed with one prime objective:- to be most efficient and powerful product on the market.
The method of construction of revolving cowls is critical to their performance. Not only must they keep their shape and integrity, the tighter the structure, the greater the performance.
The unique fin fixing system ensures the blades of the fin stay where they should. External welding or rivetting of the fins has proven in the past to have failed, and so the Rotorvent uses centrifugal forces
to its advantage. As the cowl revolves quicker, the tabs are forced onto the inside of the collar, putting no pressure whatsoever on the weld and indeed
strengthening the structure.
The Rotorvent was tested to BS715 which means it can also be used for a huge range of gas fired appliances. No other British Standard is required for this product. -
Fits 150 - 250mm flue sizes. -
316 grade stainless steel rotor structure. -
Die cast aluminium base. -
Tested from -20°C to 200°C. -
Money-back guarantee. -
Revolutionary fin-fixing method which combines threading the fin through the base of the structure and finishing with spotwelding -
One size only. -
The Rotorvent complies with BS715:1993 and does not require a birdguard.
£ 65.00
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