Friday, 24 March 2017

Chimney cowls and bird guards from a chimney sweeps point of view

cowls and bird guards from a chimney sweeps point of view 02
cowls and bird guards from a chimney sweeps point of view
When choosing your cowl it is always worth keeping in mind how your chimney sweep will clean your chimney once the cowl or bird guard has been installed.

Below is a list of cowls that I have come across as my time as a chimney sweep.

Cowls that require removing or being maintained from the roof.

Spinning Cowls
Powered Cowls

Bird guards that require periodically removing to ensure a clear sweep.

Cone Top Birdguards
Many guards that pushes into the pot may need removing annually or bi-annually depending on your soot quality and quantity. This is to ensure a clear sweep can be performed.

Bird guards that can be swept in situate.

High Top Birdguard
In general, if it has a jubilee clip attaching it to the pot, your burning correctly and you have a good updraught then it usually can be safely swept from the ground.

Cowls for disused chimneys.

The clay hood cowl
This cowl is a vent to stop dampness occurring in you disused chimney stack. Unfortunately  I see this one a lot on live fires, which results in a 'do not use' notice that explains that the clay hood cowl needs removing before she can be signed off.

C-Cap Cowl
A cap disused chimneys

Cowls for gas.

GC1 - Gas Cowl
This is the most common terminal for gas appliances


It's always worth thinking, “how can my sweep, sweep this?” when purchasing a cowl or bird guard, as by selecting a cowl that's difficult to sweep will in turn cost you more money in the annual maintenance of your chimney.

Always seek advice from a professional to ensure your cowl is suitable for your instillation.


This article was written by Jim Chim-in-ey

An insurance approved chimney sweep 

JC sweeps all open fires, wood burners and stoves.
Covering Bournemouth, Poole, Blandford Forum and Dorset.

Want to have your chimney swept?