This all depends on the kind of appliance and chimney inside your property. However, a gas fireplace will require a much smaller flue liner – you are able to use a flue liner that is only 5 to 6 inches in diameter. All Rights Reserved. These will have information to help make homes more energy-efficient. what3words: ///firepower.awake.uncouth Chimney systems that predate 1965 There are regular flue liners, steel flue liners, flexible flue liners and lastly there are furanflex flue liners. Doing it later will incur extra costs. A chimney liner may be necessary in an older property if the flue inside your chimney is no longer safe to use. There are a number of reasons why you should install any type of flue liner, here are some listed below: Some key advantages of a furanflex flue liner are: The first and probably biggest hazard is you run the risk of having smoke and carbon monoxide travelling back into your home. If installing the stove into an existing fireplace/chimney and not using a new chimney liner the installation is very straightforward for a person with average DIY skills. Insulated liners keep the flue gases warmer, increase the upward speed of those gases and help prevent condensation. The “flue” is the passageway through which the smoke and combustion gasses travel from the fire place to the outside air, usually via a chimney, this flue needs to be in good condition and must not leak, if it does the chimney flue will require relining. However, if you're not using your fireplace and your chimney acts solely as a vent for your furnace or water heater, you may not need to have a liner installed. Thus will cause frictional resistance to the flow of the gases resulting in poor up-draught, Large flues over 200mm, particularly ones containing voids, may affect appliance performance. The webinars will take place over two days. Installing a flexible chimney liner or complete twinwall system is a larger job and may involve ladders or scaffolding if external access to your roof is needed but is still technically straightforward. The British Flue & Chimney Manufacturers’ Association is Britain’s only Trade Association for factory-made chimney products and works closely with HETAS, Government, public bodies and other organisations to further the interest of the chimney & flue industry. If you have an older flue liner our professionals can check the condition by carrying out a CCTV inspection. The fitting of the stove and closure plate is outlined in more detail in a separate article that you should read after reading this article: Wood burning stove in a fireplace connected to a chimney liner If you are going to line the inside of a fireplace (rather than render or just paint) then you’ll be using some kind of fireproof lining-board. For example, if you have an electric or gas fire-suite, a chimney liner is not always necessary. For special projects we also offer our services in all of the UK. If you had a gas fire previously, you might find the gas liner coming through the chimney. Due to the size and weight of the flue liner, it is advisable to have scaffold in place. Inspect the recess and chimney chimneys may require relining to suit the fuel type being used (a gas flue Undersized liners will not allow the appliance to vent properly. However, for a more accurate price contact us and we will provide you with a free estimation. As a rule of thumb the chimney or flue should be 15% of the area of the open fire opening. The size of the lining will determine the cost along with the cost of labour – it can range anywhere from £150 to £250. Chimney liners are mandatory if you have a wood-burning fireplace, gas fireplace or open fire fireplace. Working together for a cleaner and safer environment. Chimney flue lining for an open fire. Evolve Home Energy Solutions and Exeter Community Energy (ECOE) are providing a free webinar series. E: info@hetas.co.uk. If this is not the case then you may need an electric fan to overcome this problem. We use cookies to ensure that we give you the best experience on our website. There is a regulation that says your installer must satisfy themselves that the chimney is free from defects and suitable for its intended use. This chimney project is for an open fire. Related Questions. When an installer checks your chimney they may find that the only way to provide you with a compliant and safe installation is to line the chimney. Wood burning stoves usually require a flue liner, and it is highly recommended that you combine this with a suspended pot hanger chimney cowl. CHIMNEY – A chimney is the structure surrounding one … Unburnt particles and gases take the form of visible … But you really do need to know what size of flue is recommended for your planned stove, … However, modern wood burning or multi fuel stoves are 75% or more heat efficient - meaning that only 10% or so of the heat is going up the chimney and is … We have seen many people questioning the need for a flexible flue liner often comparing an open fire to a wood-burning stove. Otherwise it is not necessary. We had the sweep round recently and he told us off for burning damp wood (which apparently makes lots of soot and can eat through the brickwork) but he didn't mention getting it lined. Do I need to line my chimney? In any case, a cowl is a good idea for eliminating blockages and downdraughts which can cause problems with your wood-burning stove. Some appliance manufacturers specify smaller flues for efficient operation. © Copyright 2021 HETAS. You should also use a chimney lining for an open fire, as this produces waste gases too. Green Lane The chimney liner should never be undersized for any appliance, especially to accommodate insulation around the liner. I had to get a liner fitted to my own chimney as when I bought the house someone has fitted a stove with just a debris plate with cleaning hatch, you just would smoke myself out of the room trying to get the chimney … will often require a modern lining solution for the following reasons: The BFCMA has produced general guidance on the selection and installation of flues and chimneys for wood burning and multi fuel appliances in residential properties. While they do require some building work, they are incredibly efficient and available in an array of style choices. A chimney liner is obligatory if you are installing a woodburning stove, gas fire or open fire in a new build property to comply with Document J of current Building Regulations. badly installed flue liners and need further attention. It may be an essential part of your installation. Furanflex flue liner technology can be applied to domestic kitchen extracts, commercial condensing boilers, air ventilation ducts along with many other types of commercial, industrial and domestic applications. A chimney fire is more likely (far less likely if lined and would also be contained within the metal tube) if you do not fit a chimney liner. For the most part their purpose was to facilitate an open fire and they would require natural circulation to take the waste gases away from the fireplace. If you want to make the fireplace wider than the original size, it’s best to consult a specialist builder first. Then we will be introducing Read More…, HETAS has been providing industry-leading training for installers of solid fuel and biomass appliances for decades with our MHCLG approved competent persons scheme in place since 2002. Basically, the answer is that an open fire was sending 80% or more of it's heat straight up the chimney and in doing so it was driving the smoke and flue gases upwards - thus aiding the natural "draw" of the chimney. This is a very popular question and the ... all stoves must be installed with a suitable CO alarm. There are a few types of liners available for all types of fireplaces. If there is any risk that the chimney could leak fumes in to the house they must line it with a suitable re-lining material. Remember carbon monoxide kills. It is mandatory if you are building a new property or perhaps you have an older property both require you to have chimney liners. This will need removing as it won’t be suitable if you are planning on using solid fuel in your fire. The type of fireplace will determine the size of flue liner for example an open fire fireplace will require a flue liner that ranges in diameter from 8 to 10 inches. It is one of the first questions anyone asks when they start thinking about installing a wood-burning stove: do I need to line my chimney? To check the flue way is clear of blockages and birds’ nests. The next consequence of not lining your chimney is it more likely that you will have a chimney fire. It is mandatory if you are building a new property or perhaps you have an older property both require you to have chimney liners. These interactive meetings keep staff up to date with changing legislation Read More…, The new legislation will ban the sale of the wet wood and house coal, aiming to prevent harmful pollution from domestic burning of all solid fuels. If the chimney is exposed (on an outside wall), or the stack is particularly tall, or the flue is of a large diameter then the answer to the proposed question above is a definite YES! As you’d expect, the requirements controlling new chimneys, flues and appliances are safety based and very detailed. Most British open fires were and still are designed to burn coal at up … 5. Flue gases contain acidic fumes such as sulphur dioxide, that combine with water from rain or condensation, to form strong acids. liner may not be suitable for other fuels). Shop All Gas Fires Without Chimneys 1. The usable like of the flue liner available in an older flue liner, it ’ s homes. You had a gas fire previously, you might find the gas liner coming through chimney. Your installer must satisfy themselves that the chimney liner may be necessary in an older property the. Houses Without a chimney fire overcome this problem and how to find more. 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