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01494 482044

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Free Delivery Over 120* UK Mainland Excl Highlands

Nonfumo Flue Systems Limited
Carousel House, Wycombe Road, Stokenchurch, Bucks, HP14 3RP, UK Mainland (Excl Highlands).

Phone: 01494 482044

Fax: 01494 216158

Email: sales@fluesystems.com

Web: https://www.fluesystems.com/

HUGE SUMMER CLEARANCE NOW ON! MD Plus Twin Wall Flue at Clearance Prices in ALL Diameters. PLUS! Many Accessory Products are Being Cleared at Great Prices. CHECK OUR CLEARANCE PAGE FOR BARGAINS!

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H Chimney Cowl - St/St Grade 316 - Solid Fuel - 125mm

Price: 63.89  RRP £106.47 (Including VAT at 20%)


The H Cowl is probably the ultimate static anti downdraught chimney cowl, as it completely isolates the combustion gases from the prevailing winds.

Manufactured using high quality stainless steel grade 316 makes this H Cowl suitable for use with appliances fired by oil or solid fuel. Please note that this H Cowl is NOT suitable for use with appliances fired by gas. Please see the gas versions that we have available.

Suitable for use with 125mm internal diameter pipes.

Fitting Instructions
The H cowl has a shaft which is just slightly under the diameter of the cowl, so for example, a 125mm H Cowl will have a shaft with a diameter of around 120mm. It then slides inside the chimney or flue system.

Fitting to a prefabricated chimney system
Slide the cowl inside the chimney system. Secure in place with stainless steel self tapping screws and seal with a high temperature silicone or sealant.

Fitting to a masonry chimney stack or pot
Slide inside the chimney or pot and mortar in place.

Customer Reviews

  Smoke free at last!  Was having trouble with my woodburner as I had terrible downdraught when there were strong winds which meant the fire was unusable as it filled the house with smoke. This was a major problem living as I do in a windy part of the world. This cowl has resolved the problem and was easy to install.   (06/01/2016) Lesley - Boulton

  Good quality part, good service  The cowl turned up really quickly and was just what I needed. It was a replacement for a galvanized cowl that had rotted so I knew it would do the job. Very happy with the quality, ease of ordering and the quick delivery.   (08/10/2012) -

  Beats ending up smoked like a kipper!  This cowl solved a severe downdraught problem where exposure to Northumbrian hooleys (technical term for a high wind) caused anyone within a radius of 10' from the woodburner to be instantly kippered. Nicely made and affordable item   (17/02/2013) -

  Does the job!  Very happy both with the H cowl - downdraft problems considerably improved, and with the excellent service. Many thanks.   (13/02/2013) - Galloway, SW Scotland

  Excellent  Excellent product and service, fast delivery. Would recommend AAA+++   (08/07/2013) Buildingworks - Co. Down

    Quick service all as expected.   (04/03/2013) -

  H- Cowl, Best 92.00 Ever Spent. BRILLIANT!!!!!!!!  Location wise we are as bad as it gets. Coastal, VERY windy, In amongst trees, Short Flue, need I go on. Non Fumo have taken my newly commissioned multi fuel stove from non operational due to serious downdraught to working like a beauty. Problem solved instantly. "ABFAB" Many Thanks To John   (25/05/2011) Warm & Toastie Jan - Scotland

  GOOD ADVICE, VERY GOOD PRODUCT, GREAT SERVICE  very helpful when contacted for advice. This cowl does exactly what it says on the tin.My Rayburn wood stove works better than it ever did. Many thanks.   (06/05/2013) elfyn - N W WALES

  125mm H Cowl  Excellent company to deal with,had this item specially made for me as they are out of stock. Don't waste money on the cheaper anti downdraught cowls as believe me they don't work. Spend the little bit extra at the beginning to avoid trying every anti downdraught cowl on the market. WORKS A TREAT   (15/01/2014) -

  Great Cowl  Well made, does the job perfectly (after I tried 2 other cheaper cowls).   (11/03/2016) Angus MacRuary - Isle of Skye

Quick Look
Suits Pipe Diameters 125mm internal
Material Stainless Steel Grade 316
Mesh Inserts No
Use With These Fuels Oil or Solid Fuel
Height (Overall) 500 mm
Width 470 mm
Height (H Section) 300 mm

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Or if you have any questions, please call our experts on 01494 482044.

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