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What is a Defra Approved Wood Burning Stove?

If you live in a zone of smoke control then it is crucial to purchase a DEFRA exempt stove. A DEFRA exempt (or SE) stove allows you to burn wood legally in a smoke-controlled zone.

They are independently tested to ensure the lowest possible emissions. Stoves with this certification often feature the word 'Defra approved' in their name or specification.

Approved for Smoke Controlled Areas

Many people believe that living in a smoke-free zone means that they aren't able to use a wood burning fireplace. It's not the case. In reality, many cities and large towns are located in a smoke controlled zone but that doesn't mean you cannot have stoves, it just implies that you have to use an exempt appliance and only use authorised fuels (usually brquettes) in your stove. The stove that is Defra-approved is a wood-burning stove that has been thoroughly tested to ensure that it is in compliance with certain requirements in terms of the emissions it generates when burning authorised materials. It is therefore able to be legally used in smoke-control zones.

The Defra logo is widely used by the industry and a large number of the stoves that have been approved bear SE after their names, meaning they are smoke-free. In order for a stove to be SE approved, it must satisfy strict criteria in regards to emissions and emissions, so you can be certain that if you choose a defra exempt stove you are getting the cleanest and best burning wood stove available.

If you are looking for a wood-burning stove that is Defra-exempt or has SE after its title, you will find that the manufacturer might have taken steps to ensure that there are enough air intakes in the front of stove to allow full combustion of fuel, and that the size of the chimney outlet is adequate to avoid soot accumulation. This is important as it ensures that the smoke from the wood stove does not escape through the chimney and into your home.

A Defra-approved stove allows you to install a 5" liner that is compliant with UK building regulations. Non-Defra-approved stoves require an 6" liner.

At Stovax we are proud to offer a selection of Defra approved stoves and fires, alongside our Ecodesign Ready stoves that have been designed with the future of air quality standards in mind. A large portion of our approved stoves can also be used conjunction with a smoke control system for properties located in Smoke Control Areas. They can be used to burn a variety of smokeless fuels, including fire logs.

Approved for Smokeless Fuels

The only stove that can be used inside a smoke-control zone is a DEFRA approved wood burner, also known by the designation DEFRA exempt. This stove should be used for solid fuel, that is wood, which is best seasoned. The government tests them to ensure they don't emit excessive smoke and that they can only be used with approved fuels.

The distinction between a stove that is DEFRA approved and one that isn't approved is usually very small. A lot of modern stoves can be converted to DEFRA conforming with an approved kit supplied by the manufacturer and installed in just a few minutes. This is due to the fact that a Defra approved stove must undergo rigorous tests and has to be limited in the amount of smoke it is able to produce.

To ensure that the restrictions are maintained, the stove must be able to limit the amount of combustion air so that it doesn't deprive itself of oxygen which can cause it to smolder. This is achieved by the mechanism that allows a small amount air into the firebox when it's burning. It is typically hidden inside the stove or underneath the base of the fire box.

Stove World UK has a large selection of 5kw defra multifuel stove approved stoves, from some of the most reputable brands in the country including Stovax Arada and Burley. They are available in a vast variety of styles and wood burning fireplace designs. Pick from a variety of Ecodesign stoves, which are designed to meet the future demands for air quality.

Smoke Control Areas are primarily situated around large towns and city centres and you can look up the website of your local authority to determine if the area you live in is classified as one. If you reside in a zone that is smoke-free, it is very important to purchase an DEFRA approved stove for your property, to avoid being fined by the local authority. This is because if you burn 'unauthorised' fuel in a non-approved stove, for example coal or any other solid fuels, you could be fined up to PS300.

Approved for wood

A DEFRA approved wood stove, also called a smoke exempt stove, is an appliance that can be used in a Smoke Control Area when burning wood. The stove will be marked with the Defra approved symbol or the word 'SE' in front of its name meaning it can only be used in smoke-controlled areas where you can burn approved fuels. In this case, wood.

The older wood stoves can release lots of particulate matter into the air that can trigger or contribute to respiratory issues asthma attacks, heart problems and premature death. This is why it's important to purchase a new wood stove that meets the strict emission standards set by the Environmental Protection Agency (EPA). Look for the "EPA 2020 Certified Label" which indicates that the wood stove meets the emission limits currently in place.

If you purchase a stove that isn't EPA certified and you reside in a zone of smoke control you must have it recertified before you can use it. It can be costly and time consuming, but it is required by law. Additionally, homeowners who sell a home that has a wood stove that is not certified may be liable for clean air tax credits and fines.

With a kit or an adjustment made by the installer, the majority of modern stoves can be Defra approved. This is due to the primary difference between the DEFRA approved stove and those which aren't, is the combustion air management system that regulates how much air flows through the stove during normal operation. Modifications are usually applied to the base or side of the firebox that is underneath the stove.

There are some manufacturers who produce two versions of a wood stove, one that is Defra-approved and the other not. The reason is that the cost of putting a wood stove through the rigorous Defra testing is high. To reduce these costs, they sell the non approved version at a cheaper price. The DEFRA approved version will have been able to have the modification to the combustion air performed as part of the testing process.

Approved for Gas

Before the Clean Air Acts were brought in homes for residential use, homeowners could burn any type of fuel they wanted, which resulted in huge amounts of smoke emissions as well as health issues. To prevent this Defra established Smoke Control Areas which meant that residential homes could not emit any smoke from their multifuel stoves or wood burners unless the appliance was Defra approved for burning only fuels that were authorised, such as manufactured smokeless coals and anthracite.

Defra approved SE (Smoke-Exempt) Stoves have been put through rigorous testing in order to demonstrate that they can burn authorised fuels cleanly in a Smoke Control Zone. The latest combustion technology delivers an indefinite amount of secondary air into the firebox. This allows the stove to meet Defra standards for Smoke Control Areas even when it is using authorised fuels such as anthracite or manufactured smokeless coals.

The Stove Yard has a large selection of 5kw defra multifuel stove-approved stoves which are perfect for those who reside in a smoke control area and need a new wood burning fireplace. We have an extensive range of traditional, contemporary and inset Defra approved stoves from industry-leading manufacturers such as Stovax, Arada, Burley and AGA.

The good news is there is no difference in appearance between a Defra-approved woodburning stove and a non-approved model. However the stoves that are approved by Defra come with a few extra features designed to ensure they burn more efficiently. Generally they will have a different design of grate as well as air vents. On gas stoves, they may also have an outlet for the flue that is different in size.

Another benefit of the Defra Approved stove is that they will almost always have five" (125mm) flue outlet which means that you can use a smaller stainless steel twin wall flexible chimney liner which is cheaper than a standard 6" (150mm) liner. This is useful when installing a Defra-approved wood burning stove into an old or non-standard chimney stack. It can save money on replacing a bigger diameter chimney liner.