When a fuel burns it gives off products of combustion which will adhere to the chimney flue. Over a period of time flammable materials such as creosote and soot will build up and when certain conditions are reached within the chimney they will ignite causing a chimney fire. It is therefore vital that the flue is kept free of these materials.
Additionally, as the flue becomes blocked up with these products the fire will not draw correctly and your fire and fuel consumption will be inefficient. More worryingly though, it may allow poisonous fumes such as carbon monoxide to vent into your house.
A chimney flue is not designed to contain a fire. It’s purpose is to act as an exhaust system to safely expel undesirable gases from your heating appliance.
Depending on the condition of the flue lining a fire burning within can easily break through and ignite adjacent timbers. Once this has happened a fire may spread throughout the property very quickly.
A fire burning within a chimney can produce temperatures of up to 1000 deg C. This can cause structural damage to the flue lining which will need to be replaced or repaired at great financial cost.
Further information can be found at www.burnright.co.uk
Most insurance companies will not pay out in respect of fires which have originated in a chimney unless it has been professionally swept and a valid certificate of sweeping can be produced as evidence.
As a professional sweep I can guarantee no mess and no fuss. Clean sheets will be placed on the floor in front of the fireplace, dust sheets will then be placed over the fireplace whilst your chimney is being brushed and vacuumed. This prevents any soot or debris entering the room. I will maintain respect for your home at all times.
There are a number of reasons why this may be happening and I will be happy to discuss this with you.
This depends on several factors which include the type of fuel used, type of appliance, duration of use, moisture content of wood and the type of chimney. The frequencies shown below are a guide only.
Smokeless Fuels – At least once a year
Wood – Quarterly when in use
Bituminous Coal – Quarterly when in use
Oil – Once a year
Gas – Once a year