A chimney cowl is a sensible investment for any property with a wood-burning stove, but how do you choose the right one for your home? It all comes down to what you need the cowl to do.
Bird guard chimney cowls
The most basic chimney cowls have a single use: to stop birds getting into your chimney.
Birds do have a habit of finding their way down flue pipes, which is distressing for them and an inconvenience for you. If they nest in the chimney, your flue might become blocked, which increases the risk of chimney fires and carbon monoxide leaks.
Standard or all purpose chimney cowl
A bit more substantial than a basic birdguard, this all purpose cowl will also help to stop rainwater from getting into the flue and your stove. For obvious reasons, this is quite a useful feature if you happen to live in the United Kingdom.
Funnily enough, it’s in the warmer months this causes a problem. In winter, the heat from your stove evaporates the rainwater almost immediately. But in summer the moisture has chance to sit and can start to rust your stove system. Buy a standard chimney cowl.
Anti-downdraught chimney cowls
Anti-downdraught cowls are designed for use in properties that are exposed to high winds and, as a consequence, suffer from smoke blowing back down the chimney and into the room.
Fitting this cowl will reduce the effect of the wind and stop you being exposed to unpleasant and dangerous gases. Buy an anti-downdraught chimney cowl.
Revolving Chimney Cowls
The rotating or revolving cowl is another way of dealing with gusty conditions that are causing smoke to blow down your chimney.
It can also be of use if your stove suffers from a weak draw (another reason that smoke might be leaking into your room). Buy a revolving chimney cowl.