SHL Spinner Anti Down Draught Cowl 8inch

The main purpose of The spinner anti down draught chimney cowl is to prevent the penetration of the chimney by moderate or severe winds which causes smoke to escape from the open fireplace or stove or any other appliance. The sail design blade fins the spinner anti down draught chimney cowl responds to wind coming from any direction. Its response is immediate because of its double bearing pivot action. The more severe the wind. The more effective the Spinner cowl becomes. When revolving, the spinner anti down draught chimney cowl also ventilates the chimney shaft helping keep it dry and it can also help prevent back up smells coming down into the room via the fireplace or stove. Does not impede the performance of the chimney in any way. Suitable for use with all fuels - oil, gas & solid fuels (except anthracite). The spinner anti down draught chimney cowl also protects the chimney from moisture ingress and nesting birds. If your problem is excess moisture ingress a static anti down draught chimney cowl offers more protection from driving rain than either the spinner anti down draught chimney cowl or Anti bird and anti rain chimney cowl.

Should not be used with Anthracite fuel or fuels high in sulphuric acid. The spinner anti down draught chimney cowl must not be used on a chimney shorter than 5.4864 m. Will not prevent a down draught if the chimney is more than 4 feet lower than the apex of the roof or 4 feet lower and in close proximity to a taller structure, hedge, or tree(s).

This cowl will not prevent a draughting problem when there is no wind – if the problem still exists when there is no wind (in conditions such as cold, calm and frost) the problem is a lack of draught (not a downdraught) and a motorised chimney cowl is required such as the super C electric fan cowl. No anti down draught chimney cowl can solve a lack of draught.

Will fit most standard chimney pots - the spinners base diameter is 200 mm. To fit the Spinner to a 150 mm chimney pot – a 150 mm Spinner Adapter must be purchased.

The spinner anti down draught chimney cowl is very easy to install – only a screw driver is required. Fitting instructions supplied with each product. To fit the spinner to a prefabricated or insulated flue – a spinner adapter must be purchased.

• The spinner chimney cowl incorporates a simple yet effective system of attaching closely to a chimney pot or spinner adapter
• The three claws grip the inside of the pot / adapter
• The three strapping legs are positioned outside the pot / adapter
• Claws & strapping legs are held in place by 3 wing-nuts & a tightly fitting strapping band
• There is no drilling or measuring involved in fitting this cowl. A screwdriver is the only tool required
• Full fitting instructions are supplied with each cowl

• Material: Stainless Steel
• Guarantee: 1 Year
• Spinner Base Diameter: 8inch