What Happens If My Boiler Flue Is Blocked

What Happens If My Boiler Flue Is Blocked?

If your boiler isn’t burning properly, then carbon monoxide can be produced as well as the usual by-products of combustion: carbon dioxide and water vapour. This could also be a sign your boiler flue is blocked, read our article in full to find out more…

What Happens If My Boiler Flue Is Blocked?

If your boiler’s flue pipe is incomplete or incorrectly located, gases can find their way back inside your home: this can be extremely dangerous.

What is carbon monoxide?

Carbon monoxide gas is odourless and colourless, which makes it difficult to detect. Although it’s not the responsibility of homeowners or landlords, it makes sense to make you have at least one carbon monoxide alarm fitted in any room in your home with a gas appliance. To do so is the law for a private landlord or if a solid fuel appliance is fitted in the building.

What can cause a blocked flue?

Signs of a blockage could be black or dark marks around the appliance. The most common cause is natural: you might notice leaves, conkers, twigs, pinecones, bits of birds’ nests or even dead birds blocking your flue.

What do I do if I think my boiler flue is blocked?

Stop using the appliance immediately and have it checked by a Gas Safe Registered engineer. Don’t use it till you get the all clear from your plumber. Never use a gas appliance unless you are sure it is safe.

Do I need to call a plumber?

If you’re in any way concerned about anything to do with your boiler or your boiler flue, call our Gas Safe registered engineers: we’re fully qualified to handle all boiler-related jobs including flue positioning on most boiler types and identifying and resolving blockages. You should have all gas appliances checked for safety at least once per year, and we can do that for you too.

L&W Heating and Plumbing

If you need to call on a Gas Safe registered plumber call L&W Heating and Plumbing experts on one of our regional numbers:-

Boiler Installation Wigan Specialist 01942 417220
Boiler Installation Runcorn Specialist 01925 394260
Boiler Installation St Helens Specialist 01744 776140
Boiler Installation Warrington Specialist 01925 394260
Boiler Installation Newton Le Willows Specialist 01925 394260
Boiler Installation Widnes Specialist 01925 394260


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