DEFRA Ecodesign Rules — Complete UK 2026 Guide
The technical reference for the UK’s Ecodesign Regulations for solid-fuel space-heating appliances. What they cover, what they don’t, and what’s likely next after the March 2026 consultation.
One-paragraph summary
Ecodesign rules took effect on 1 January 2022. They apply to wood-burning, multi-fuel, and boiler stoves placed on the UK market from that date — not to appliances already installed. Existing stoves remain legal to use, subject to local Smoke Control Area and fuel rules. See the “are wood burners banned” explainer →
Ecodesign emissions thresholds
These are the limits for the common legal category covering closed-fronted, non-pellet wood stoves. They apply under set laboratory conditions and are not interchangeable with grams-per-hour Smoke Control Area limits. See Annex II of Regulation (EU) 2015/1185.
| Pollutant | Limit | Context |
|---|---|---|
| Particulate matter (PM) | 40 mg/m³ | Closed-fronted, non-pellet solid-fuel heaters |
| Carbon monoxide (CO) | 1,500 mg/m³ | Closed-fronted, non-pellet solid-fuel heaters |
| Organic gaseous compounds (OGC) | 120 mgC/m³ | Closed-fronted, non-pellet solid-fuel heaters |
| Nitrogen oxides (NOx) | 200 mg/m³ | Biomass fuel; 300 mg/m³ for fossil solid fuel |
| Seasonal efficiency (closed stoves) | ≥ 65% | Open-fronted heaters must achieve ≥ 30% |
Who and what is regulated
- Manufacturers and importers placing new solid-fuel space-heating appliances on the market — the Office for Product Safety and Standards is the appointed market surveillance authority
- Retailers selling new appliances — should verify the conformity information and evidence of when any pre-cutoff stock was first placed on the market
- Installers and building control — still need to check that the chosen appliance and installation comply with the building rules that apply where the property is located
- Not retrospectively banned: an existing installed stove does not become unlawful merely because it predates Ecodesign. Smoke-control, fuel, nuisance and safety rules still apply while it is used
Ecodesign vs DEFRA Exempt vs clearSkies — the labels
Three different certification labels operate in parallel. They address different things:
| Label | Type | SCA use |
|---|---|---|
| Ecodesign requirements | Mandatory product baseline (2022+) | Not sufficient on its own for burning wood in an SCA |
| Smoke-control exemption | Government exemption, listed for the relevant UK country | Required to burn wood, using the fuel and conditions listed |
| clearSkies Level 2 | Voluntary (industry-led) | Wood stove meeting Ecodesign — not auto DEFRA Exempt |
| clearSkies Level 3 | Voluntary (independently verified) | Ecodesign + verified DEFRA Exempt |
| clearSkies Level 4 / 5 | Voluntary (independently verified) | Level 3 + higher efficiency tiers |
clearSkies says its Level 3 and higher products have been verified for Ecodesign performance and smoke-control exemption. Exemptions are country-specific, so confirm the exact model and permitted fuel in the current product listing before buying. How the clearSkies scheme works →
Pre-2022 stoves and the second-hand market
Ecodesign regulates when an appliance is placed on the market and put into service; a manufacture date by itself does not prove when that happened. If you are considering a pre-2022 or second-hand stove, treat its history and its suitability for a new installation as separate checks. Practical implications:
- Ask the seller for evidence of when the appliance was first placed on the market; an original dated invoice may form part of that evidence, but do not rely on a serial plate alone
- Confirm the evidence, appliance condition and installation suitability with your installer before purchasing a second-hand stove
- If you’re in a Smoke Control Area, the stove still needs to be DEFRA-exempt to burn wood — Ecodesign status alone isn’t enough
- In England and Wales, a new installation must follow the applicable combustion-appliance building requirements. Scotland and Northern Ireland use different building-standard systems
The 2026 DEFRA consultation
DEFRA published a formal consultation on reducing solid-fuel burning emissions in January 2026. It closed on 19 March 2026; responses are under review. The three main proposals — all applying to new appliances only:
- New 1g/hour emissions limit for stoves (vs current 5g/h SCA exempt limit). Around 70% of post-2018 tested appliances already meet this. If adopted, a 3–5 year grace period would apply.
- Mandatory A–C labelling at point of sale for new stoves, with a health warning statement. Enforced by Trading Standards.
- Periodic retesting of certified appliances (currently tested only at initial market placement).
Existing stoves are not affected by any of these proposals. The consultation does not itself change the law; current smoke-control, fuel and nuisance rules continue to apply while an installed appliance is used.
Looking ahead: 2030 and beyond
The Climate Change Committee has recommended eliminating new wood-burning stove installations by 2030 and urban wood-burning by 2050. These are advisory recommendations, not policy. DEFRA has not adopted them.
The direction of travel is toward tighter emissions limits for new stoves and stronger enforcement of SCA rules. Do not treat a laboratory product limit as a prediction of emissions in a particular home: fuel moisture, operation, servicing and flue performance all affect real-world results.
Primary sources
- Ecodesign Regulation 2015/1185, Annex II — product efficiency and emissions thresholds
- Ecodesign for Energy-Related Products Regulations 2021 — UK implementation and commencement
- DEFRA solid-fuel-burning consultation — proposals, not current law
Frequently asked questions
What is DEFRA Ecodesign for wood-burning stoves?
Ecodesign product requirements took effect on 1 January 2022 for solid-fuel local space heaters placed on the UK market from that date. For closed-fronted non-pellet stoves, the minimum seasonal space-heating efficiency is 65%. The rules did not retrospectively ban continued use of appliances already installed.
What are the exact Ecodesign emissions limits?
For closed-fronted non-pellet biomass stoves at 13% oxygen: particulate matter (PM) must be no more than 40 mg/m³, organic gaseous compounds (OGC) no more than 120 mgC/m³, carbon monoxide (CO) no more than 1,500 mg/m³, and nitrogen oxides (NOx) no more than 200 mg/m³ expressed as NO₂. Minimum seasonal space-heating efficiency is 65%.
Is "Ecodesign Ready" the same as "DEFRA Exempt"?
No — they certify different things. Ecodesign Ready is an industry-administered confirmation that the stove meets the 2022 Ecodesign emissions and efficiency thresholds. DEFRA Exempt is a separate UK government approval needed to burn wood in a Smoke Control Area. A stove can be Ecodesign Ready without being DEFRA Exempt. clearSkies Level 3+ certifies both simultaneously.
What’s the clearSkies certification scheme?
clearSkies is a voluntary industry-developed certification mark with Levels 2–5 and independent scheme administration. Level 2 verifies the minimum product baseline; Level 3 also verifies smoke-control exemption; Levels 4–5 exceed minimum performance criteria. Exemptions are country-specific, so check the exact model and nation in the live listing.
Can I buy a second-hand pre-2022 stove?
Ecodesign focuses on when a product was placed on the market and put into service; a manufacture date alone does not prove that history. Before buying a pre-2022 or second-hand stove, ask for evidence such as the original invoice and have an installer confirm its condition, efficiency, smoke-control status and suitability under the building rules for the new location.
What about the proposed 2026 1g/hour emissions limit?
DEFRA’s January 2026 consultation (closed 19 March 2026) proposed reducing the smoke emissions limit from 5g/hour (current SCA standard) to 1g/hour for new stoves. Around 70% of post-2018 stoves already meet this. A 3–5 year grace period would apply if adopted. Existing stoves would not be affected.
Will Ecodesign rules get tighter?
DEFRA consulted in 2026 on tighter requirements for new appliances, but a consultation is not current law. Check the published government response and legislation before treating any proposal as adopted; existing smoke-control, fuel and nuisance rules continue meanwhile.