In simple terms, the smoke & exhaust gases from your fire rise up inside the stack as they are warmer than the existing air; the familiar principle of hot air rising. Added to this are principles of pressure; namely the smoke being "drawn" out by the air pressure above the roof. Chimneys become more efficient once they are warm -when the air inside has warmed up, they draw the smoke up better.
Hence fires can be a bit smokey when first lit. In order for this to all work correctly, the stack needs to be in good condition: cracks and other damage can seriously impair efficiency, as well as causing dangerous smoke to leak back into the home. For that reason, any damage needs to be quickly fixed.
Long term erosion of brickwork and mortar can let water seep in and when this freezes the expansion can cause cracks. Deteriorated lead flashings are also a weak point. If left unchecked, prolonged water ingress can spread to surrounding roof members, resulting in rot. Sometimes cracks can result from the combination of weakened masonry and storm force winds.
Hence fires can be a bit smokey when first lit. In order for this to all work correctly, the stack needs to be in good condition: cracks and other damage can seriously impair efficiency, as well as causing dangerous smoke to leak back into the home. For that reason, any damage needs to be quickly fixed.
Long term erosion of brickwork and mortar can let water seep in and when this freezes the expansion can cause cracks. Deteriorated lead flashings are also a weak point. If left unchecked, prolonged water ingress can spread to surrounding roof members, resulting in rot. Sometimes cracks can result from the combination of weakened masonry and storm force winds.
Services
We are a small family run business with over 10 years experience specialising in all aspects of chimney construction, chimney investigation and chimney relining work you can rely on AFC to provide an outstanding service. Our mission is to exceed customers expectations, with the highest level of quality, we have an outstanding reputation with a solid client base throughout the south of England.
Avon Forest Chimneys offer a large range of chimney related services, including all chimney repairs and lining, through to stove /boiler installations and even Biomass. We can survey flues upto 60M in height. We will also supply you with a USB stick or memory card with the survey report. This service is recommended in older style homes, where old chimney flues are required to be re-used.
We have over 10 year experience in the installation of wood burning stoves & multi fuel stoves as well as the fitting of fireplaces. Below is a gallery showing just some of the stoves & fires we have installed over the years. If you are looking for a particular type of stove and are having problems locating it, call us and we can help.
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