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Windkat anti-downdraft anti-wind cowl DTW


Cowl for exposed chimneys or turbulent conditions. Fits liners or clip-together twin wall.

Customer Reviews

Based on 4 reviews
David Goulding
great product

I purchased an enamel pipe and trap, chimney flue liner and the windkat cowl from Stovefitters Warehouse. The order was received very quickly within a few days. The flue-liner had been damaged in transit by the delivery company who were sub-contracted. The cowl arrived in a later shipment. Stovefitters Warehouse were very easy to contact and outstanding in their handling of the damaged item which was quickly replaced, arriving much better packaged the second time. I installed my stove and all works perfectly, the cowl looks great and works very well. I noticed perhaps a slightly lower draw through the stove, but very consistent no matter how the wind is blowing and my stove works perfectly. I have had problems in the past with air blowing back into the stove in high winds, but no issues so far with the Windkat which is very robust and well-made. Also no issues with rain coming in. Would definitely recommend. Thanks!

Michael Blake
One of the Best Cowls out there

I had heard good things reports about Stovefitter's Warehouse and how the Windcat can improve draw rates whether in perfect or in challenging locations.
Its certainly a premium produict with its design features compared to standard cowl caps but this one provides so much more than providing a rain cap.
Compared to the standard basic cowl this replaced along with the new twin wall system SFW specified and supplied for this installation this 'cowl' really has boosted the draft rate and held that in various weather states.
Fitting into twinwall couldnt be simpler. The instructions were very comprehensive and clear covering every type of chimney and flue fitting situation and came with appropriate sealant for the job.
It's definitly an advanced cowl design that isn't just visually attracting, coming in a range of colours but one that ups the game considerably and is well ahead of the competition.


About the Windkat Cowl

man with cowl on his headSome chimneys just struggle to work as well as we would like.

Like us humans chimneys can be a little on the short side, or too tall, or too fat and old. Chimneys that live in a particularly windy or turbulent location can often prove to be under achievers.

This is where the Windkat cowl comes "riding to the rescue". That chap in the picture above actually does arrive, cowl on head, astride a large black stallion, delivering your spanking new Windkat cowl directly to your door (pleaser note that should he prove unavailable we may use Parcelforce or some other courier).

cowl suction diagramThe Windkat cowl works by directing gusts upwards via a series of ducts and nozzles, the resulting flow of air assisting the draw of the chimney rather than fighting against it.

This design, unlike spinning cowls, has no moving parts and therefore there is nothing to "stop working" or "seize up".


Fit to Twin Wall

It is very easy to fit your new Windkat cowl to your clip-together twin wall chimney. Just add a lit of the supplied heat-proof Silicon and slide it in.

Fit to Liner

Fit to chimney liner with the supplied Jubilee clip. If fitting to stack screw down to brickwork. If fitting to top of chimney pot use provided heat-proof Silicon.

Fit to Chimney Stack

Screw down to top of stack - simples.



Three Colour Options






Windkat in Use in High Winds

I fitted a multifuel stove into our cafe in North Berwick, Scotland. We are right by the sea so prone to strong winds. The cafe roof is single story and surrounded by three story buildings so down draughts were making the stove unusable. We tried various cowls with no success.
Then we tried the Windkat. Immediately the problem was solved. In the past few weeks we’ve had very strong, swirling winds. You’ll see from the video how much the wind is going downwards, but still the smoke is pulled from the chimney.

Delivery Promise

We offer 14 days from delivery to report any courier damage to your parts. If your item is damaged by the courier we will replace or refund as desired.


We will happily strive to match any price you may have from any other supplier as long as the other supplier has it in stock.
Offered an "ex-display" or "shop soiled"? We will strive to offer you a new stove for the same price.

Already have a chimney? You need 1. Stove 2. Liner 3. Fitting Pack 4. Chimney closure plate (Hardiebacker board from Builder's merchants or galvanised sheet).That's it!
No chimney? Check out our shed kits or let us design your clip-together chimney design - easy peasy.

Julian Patrick, author of the Stovefitter's Manual

Stovefitter's Warehouse is owned and managed by Julian Patrick, blogger and author of The Stove Fitter's Manual. Julian was previously a full-time installer of wood-burning stoves (including solid fuel heating systems). He laid down the tools in 2013 to write his stove manual and open a small shop in North Wales (the Wood Stove Hut, soon to grow into The Stovefitter's Warehouse).

More info about the company and Julian's team here