Ecodesign stoves: the EU standard explained

Updated 3 November 2026 · Hearth & Home guides

If you have looked at new stoves recently you will have seen "Ecodesign" on almost every model. It refers to an EU regulation that sets minimum efficiency and maximum emission levels for solid fuel heaters sold in Europe, including Ireland, since 1 January 2022.

The regulation

Commission Regulation (EU) 2015/1185 applies Ecodesign requirements to solid fuel local space heaters: stoves, inset stoves, cookers and open-fronted heaters that burn wood, pellets, coal or other solid fuels. It was adopted in 2015 and its requirements took effect on 1 January 2022. A companion regulation, (EU) 2015/1186, introduced an energy label for local space heaters.

Appliances placed on the market from that date must meet the limits. Stoves already installed in homes are not affected, and there is no requirement to replace an older stove that is working safely.

Efficiency requirements

The regulation sets a minimum seasonal space heating efficiency, which varies by type of appliance:

The gap between the open-fronted and closed-fronted figures says a lot about why a stove gets more heat from the same fuel than an open fire. See stove vs open fire.

Emission limits

Ecodesign appliances must also stay within limits for four pollutants, measured at 13% oxygen:

• Particulate matter (PM): the most important limit for health. For closed-fronted stoves it is 40 mg/m³, for pellet stoves 20 mg/m³, for open-fronted appliances 50 mg/m³ and for cookers 40 mg/m³, under the measurement method used by most manufacturers.
• Organic gaseous compounds (OGC), which indicate incomplete combustion.
• Carbon monoxide (CO), for example 1,500 mg/m³ for closed-fronted log stoves.
• Nitrogen oxides (NOx), with separate limits for biomass and fossil fuels.

Manufacturers declare these figures in the product information sheet and technical documentation, which a retailer should be able to provide.

How Ecodesign stoves achieve this

Most of the improvement comes from better control of combustion air. Typical features include:

• pre-heated secondary air that burns off gases above the fire;
• tertiary air inlets at the back of the firebox for more complete combustion;
• an airwash over the glass that keeps it clear and helps burn the fuel cleanly;
• well-insulated fireboxes that reach and hold a high combustion temperature;
• simplified air controls that are harder to shut down so far that the fire smoulders.

"Ecodesign Ready" and older labels

Before 2022, the UK stove industry ran an "Ecodesign Ready" scheme for stoves that already met the forthcoming limits. You may still see it on older models and second-hand stoves. Since January 2022 meeting the standard is mandatory for new appliances, so the phrase on its own no longer distinguishes one new stove from another. Look at the declared efficiency and emission figures instead.

What it means in practice

An Ecodesign stove is not clean unless it is used properly. The test results assume dry fuel and correct operation. Burning wet wood, loading too much fuel or closing the air down to make a fire last overnight all raise emissions sharply. To get the performance the label suggests:

• burn dry wood below 20% moisture, or approved smokeless fuels in a multi-fuel model;
• load little and often rather than filling the firebox;
• let the fire burn brightly with visible flames, not smoulder;
• keep the flue swept (how often).

Pellet stoves and Ecodesign

Pellet stoves face the strictest limits in the regulation: at least 79% seasonal efficiency and 20 mg/m³ for particulate matter. They can meet them because the fuel is uniform and the burn is controlled electronically: an auger feeds pellets from a hopper at a set rate and a fan supplies combustion air. That makes pellet stoves very consistent, but they need an electricity supply, regular ash cleaning and pellets of a good, consistent quality, usually certified to the ENplus standard. A power cut stops the feed and the fan, so manufacturers build in a safe shutdown sequence.

Ecodesign and installation in Ireland

Ecodesign is a product standard. It says nothing about how a stove is installed, which is governed in Ireland by the Building Regulations. Technical Guidance Document J (heat producing appliances) covers hearths, clearances to combustible materials, flue sizes, chimney liners and the supply of combustion air, and provides for a carbon monoxide alarm when a new or replacement solid fuel appliance is installed. Part L deals with energy performance. A stove with excellent test figures can still perform badly on an unlined, oversized or leaking chimney, so a flue survey is part of any sensible installation.

Buying checklist

1. Ask for the product information sheet and check seasonal efficiency and PM emissions.
2. Check the nominal heat output against the size and insulation of the room.
3. Confirm which fuels the stove is approved for.
4. Make sure installation follows the Building Regulations, including Technical Guidance Document J, with a carbon monoxide alarm.
5. Read our note on grants and stoves before budgeting for one.

Older stove ranges sold before the standard existed are listed in the stoves catalogue archive. Those pages are historical and the models shown may not meet current requirements.

More heating guides

• Kiln dried logs: what you are paying for and how to check it
• Stove fans: how heat-powered fans work and whether you need one
• Stoves with a back boiler: how they work and what to check
• How often should a chimney be swept?