Which chimney cowl is best?

The best chimney cowls for stoves and wood burners

  • Screw Fit Rain Cap.
  • Jackdaw Bird Guard.
  • Anti-Downdraft Cowl.
  • Dura Flue Weathering Cap in Stainless Steel.
  • Push Fit Pot Hanger Rain Cap.
  • Mini Anti-Downdraft Pot Hanger.

Are chimney cowls a standard size?

The Standard Chimney Rain Cowl fits flues and pot sizes from 125mm (5″) to 250mm (10″) internal diameter with the umbrella lid going to 300mm (12″) external diameter. This Chimney Cowl is Suitable for Multi Fuels. The Standard Chimney Cowl is available in a Terracotta and Buff Stone finish.

Are chimney cowls a good idea?

The primary reason for installing a chimney cowl is for the prevention of downdraught. Downdraught is caused by negative air pressure, which can be a result of anything from overhanging trees to a too-short chimney. This causes air to be forced back down the chimney and into your room.

Does a chimney cowl improve draw?

Chimney cowls can increase draw . This can sometimes be solved by warming up the chimney (by burning some newspaper inside the chimney) as cold air can often act as a plug in the chimney preventing the hot air from rising.

How long does a chimney cowl last?

What is the life expectancy of a cowl? Colt cowls are manufactured to the highest quality and so can be expected to operate for many years. In fact over 4 million Colt Cowls have been successfully installed since 1931 and a huge number are still there decades later!

What stops rain coming down a chimney?

Every chimney has some type of cover or crown that aims to prevent rain from dropping directly down the chimney. Most chimney crowns have angled surfaces designed to divert rain off their surfaces and away from the chimney.

How do you measure a chimney cowl?

Single Flue Pipes

  1. Measure the height of your chimney flue, from the top of the chimney, called the chimney crown, to the top of the flue.
  2. Measure the inside diameter of the flue pipe, from edge to edge, with a measuring tape.

Do all chimneys need a cowl?

Cowls are metal ventilators that sit on the top of chimney pots; they are an optional accessory that comes with wood burners. There is no obligation to use a cowl, but it is clear that they can have a lot of positive impacts for the home, and for how your wood burner works.

Can you sweep a chimney with a cowl?

If your chimney has a cowl fitted, it should be removed to ensure the whole of the chimney length is swept clean. Most cowls simply lift off or have a couple of bolts to loosen before removal.