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Our Large Sized Chimney Cowl will fit Chimney Pots with a diameter between 290mm up to 400mm.

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£144.00 £133.00

  • Solid Fuel
  • Coal Fuel
  • Gas Fuel
  • Oil Fuel
  • Terracotta
  • Buff Stone
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Its common to find that not all Chimney Pot sizes are a standard size. We are pleased to have our Large Size Chimney Cowl which is designed to cater for oversized chimney pots.

Our large size Chimney Cowl is suitable for all fuel types (excluding smokeless fuel) and fits Chimneys with a diameter between 290mm up to 400mm.

The larger size Chimney Cowl is every bit as effective as the standard Chimney Cowl too. This cowl has all the same features as the standard cowl, all be it designed to fit larger type chimney pots only.


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Its sometimes difficult to choose the correct size of Chimney Cowl. We have the perfect solution and can be done from ground level as well. If you can accurately guess the size or width of the chimney pot from the floor you can order the right Cap or Cowl from Chimney Cowl Products. The good news is this is relatively easy once you know the rough size of a house brick and the thickness of the walls of a chimney pot. Using either the naked eye or a set of binoculars get a ‘side on’ view of the chimney pot you wish to cap or fit a chimney cowl, then find a full sized brick nearest to the chosen pot as a reference, normally directly underneath. Now imagine that the brick is placed on top of the chimney pot itself and make a mental note whether it would fit inside, hang over, or sit flush. It may sound silly but once you know that the width of an average UK house brick is 225mm ( 9″ ) for imperial or 215 ( 8 and half ” ) on a modern property, it provides a very accurate impromptu tape measure. The other factor you may need is internal pot size, this can also be guessed quite accurately if you know the average thickness of a chimney pot is about 25mm ( 1″ ) , simply factor this in and you can work out most chimney pot width’s quite accurately. If you have large decorative rolls on top of the pot, make an allowance for this by guessing, using a brick as your guide.
Chimney Cowl Products - Your family run business proudly capping the UK for over 15 years...
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