Our Stoves are Defra approved- Wood Burning or Multifuel

Defra / Eco 2022 ready

DEFRA is an acronym for the UK Government’s Department of Environment, Farming and Rural Affairs. They are responsible for safeguarding our natural environment, supporting the food and farming industry and sustaining a thriving rural economy.

In 1993, DEFRA introduced some additions to the Clean Air Act which prohibited the production of dark smoke from chimneys and the emission of grit, dust and fumes from furnaces and chimneys within many large cities and urban areas within the UK.

This legislation has become more and more prominent in recent years, as wood burning stoves and log burners have risen in popularity.

What is a DEFRA approved stove?

A DEFRA approved stove, or a DEFRA smoke exempt appliance is a wood burning or multi-fuel stove that has been rigorously tested against the government's criteria for emission levels. DEFRA approved stoves have passed these tests and are limited on the amount of smoke that it will produce during all stages of normal operation.

Typically, these DEFRA approved stoves have been modified by the manufacturer in a way that limits the level the appliance can be starved of air during the burning process. When a stove is starved of air this creates a smoky combustion and increase the amount of black smoke that the stove will produce.

Eco 2022 stoves need to be Defra as well to be installed in a Smoke Control Area.  Always check before buying your stove whether you are in a Smoke Control area.

Here at StovefitterUK we only stock and supply DEFRA approved stoves.
Starting from £600.00.

We can supply only Flue Liners Kits and Parts give us a call and we can get you a price.

Wood burning stoves

As the name suggests, you can only burn wood logs. Wood burns better on a flat bed of ash and draws air in from above to help it combust therefore a wood burning stove has no grate. There is a flat surface for the wood to sit on. Wood burning stoves can give out a less consistent heat and aren’t recommended for overnight burn, but they create the prettier flames, A 316 Stainless Steel Grade Liner is suitable for Wood Burning only.
If you only plan on burning smokeless coal on the odd occasion having a multi-fuel grate permanently in place will reduce the efficiency on the wood that you will be burning the majority of the time.

Multi-fuel stoves

Multi-fuel stoves can burn a variety of different fuels such as smokeless coal, peat or turf briquettes, anthracite, and wood logs. Although you can only use Smokeless fuels, you still have more options than with the wood burner, therefore this makes the multi-fuel stove more versatile. Multi-fuel stoves need a raised grate at the bottom that lets the air circulate underneath the fuel, and allows you to burn coal and other fuel types. Smokeless fuels require lots of air underneath to get and keep them alight.  Ash from multi-fuel stoves falls through the riddling grate and into an ashpan below, and you must empty it often to prevent the ash building up and stopping air flow. Manufacturers recommend a 904 Grade Stainless Steel Liner for burning Smokeless fuels.
So, there are the choices, if you’re mostly going to be burning wood then using a multi-fuel stove is much less efficient because the wood won't burn as well on a grate, but you do have a lot more choice when it comes to fuel. If you do have a multi-fuel stove and feel you are mainly burning wood an idea, is you can allow the ash to build up on the grate, creating a bed for the wood to burn on.

A multifuel Stove means you can burn difference fuels separately; it is never recommended burning wood and smokeless coal together. it is inadvisable for the following reasons:

Smokeless coal likes air underneath and wood likes air from above. One or both fuels will be burning inefficiently. The water left in the wood can mix with the sulphur in the smokeless coal creating a caustic chemical that can rot internal parts and cause premature liner failure. Flue Liner Manufactures will test for this and it could void your Liner warranty.

Stove and Flue liner installation


We have our own expert in house Team of Installers. Once your deposit has been received we will confirm your installation date and set you up on our electronic diary if you have outlook this is all emailed to you. Any updates and changes are posted on this, so you can see where we are upto.

Day of Installation

On the day of installation, we will aim to get to you between 9.30am and 10.30am depending where you are in the country/traffic dependant. We will update you in the morning with an ETA from the Sat Nav.

The team will talk you through your install and get to work right away, the installation will be completed in a day unless you are told otherwise. It may be a long day as sometimes the Flue Liner doesn’t want to come down the chimney.

On competition we will talk you though your stove and explain how to use it. Don’t worry if it seems a lot to take in please just call us and we will talk you through it as many times as you need.

We register your installation with Hetas online and it can take 3 to 4 weeks to come through. Once submitted we will update our online outlook system with your Hetas Registration Number.

DISCLAIMER Stove Fitter UK requires that during installation the room is as empty as possible and carpets rolled back at least halfway and covered with large cloths, we will then cover over with large tarpaulins. Opening up a chimney is a messy job. Any items left in the room and carpets either rolled back or not during installations are at the customer’s own risk. Soot may drop from the opening when the flue is being installed, we use an extractor fan but this won’t collect everything. Dust will appear for a couple of days after install, this is normal. Having the chimney swept prior to installation is always recommended if possible.

Flue Liners 316 Grade & 904 explained

What is the difference between 316L and 904L flue?
Which liner to choose? The difference is purely one of quality. The 904 grade is a higher grade of stainless steel suitable for Smokeless fuels then the 316 grade and is less likely over time to corrode from the inside.

316 Grade Flexi Liner

Suitable for Wood Burning only, many suppliers now are voiding any warranty if Smokeless fuel is used with a 316-grade flue liner. A life time warranty is given when burning wood only.

904 Grade Flexi Liner

Suitable for Wood Burning and Smokeless Fuel many suppliers are offering a 15 year to lifetime warranty.

Twin Wall Insulated Flue System

The Twin wall system that we used is suitable for Wood burning and Multifuel Stoves

Regularly Sweeping of your Flue Liner

It is important that your flue is swept at least once a year and more often if the stove is used regularly throughout the year. If a sweep certificate is not kept for each year of use it will void the warranty.

Sweeping and Servicing

Sweeping and Servicing

A chimney must be swept at least once per year, typically when this is being done the stove can also be serviced with new parts like rope seals/gaskets, glass fitting or other refurbishments such as spraying/painting the stove.


Call to book in. We have a team of 3 sweeps  if we can't fit you in we always recommend a local reputable company

07714 514 117

07586 980 881

07883 892 886

07883 896 441

07853741 362