A crackling fire warming the room while the first frost creeps across the windows outside. For many homeowners, the wood stove is the heart of the home. And then you read about deadlines, limit values and the 1st BImSchV and ask yourself: am I still allowed to operate my stove at all?
The short answer first, because it reassures many: there is no general ban on wood stoves. But anyone who heats needs to know which stoves are still allowed and which are not. This article sorts it out clearly and without scaremongering.
No general ban, but clear rules
The First Federal Immission Control Ordinance, or 1st BImSchV for short, is intended to reduce particulate matter from private fireplaces. It does not ban heating with wood. It specifies how cleanly a stove must burn. Anyone who meets these values may continue to operate their wood stove with a clear conscience. These limits apply to existing stoves:
- Particulate matter: no more than 0.15 grams per cubic metre of flue gas
- Carbon monoxide: no more than 4 grams per cubic metre of flue gas
Modern stoves sold today burn considerably cleaner. They may emit only 0.04 grams of particulate matter and 1.25 grams of carbon monoxide. The technical progress of recent years is therefore substantial, and that is exactly what the regulation is about.
These stoves are still allowed
Four groups of wood stoves may keep burning without worry:
- Stoves that demonstrably comply with the stated limit values. You prove this with a manufacturer's certificate or a measurement by the chimney sweep.
- Stoves that have been retrofitted with an approved dust separator and thus reach the values.
- New wood stoves built to the current state of the art. Anyone who bought in recent years is generally on the safe side.
- Stoves that are exempt from the retrofitting obligation.
The last group includes some classic fireplaces that the legislator deliberately exempted:
- Historic stoves manufactured or built before 1950
- Open fireplaces that are only used occasionally
- Masonry heaters, i.e. tiled stoves built on site by craftsmen
- Cookers and baking ovens below 15 kilowatts rated heat output in the non-commercial sector
- Bath stoves
- Single-room fireplaces that are the only heat source in the flat or house
Whether your stove falls under one of these exemptions will be confirmed by the chimney sweep. Rely on the professional check here, because the exact conditions decide in detail.
These stoves are no longer allowed
On the other side are the old stoves that emit too much particulate matter and were never verified or retrofitted. A staggered retrofitting deadline applied to them, depending on the date on the type plate. The small metal plate is usually on the back of the stove. The stages at a glance:
- Type plate up to 31 Dec 1974 or date unknown: deadline was 31 Dec 2014
- Type plate 1 Jan 1975 to 31 Dec 1984: deadline was 31 Dec 2017
- Type plate 1 Jan 1985 to 31 Dec 1994: deadline was 31 Dec 2020
- Type plate 1 Jan 1995 to 21 Mar 2010: deadline was 31 Dec 2024
This means the staggered schedule has fully run its course. The last deadline expired on 31 December 2024. A stove from this period that does not meet the limits and has been neither retrofitted nor replaced may no longer be operated today. No further stage is planned for the coming years.
Is my wood stove still allowed? How to check
The first look goes to the type plate. If it shows a manufacturing date before 22 March 2010, the stove is in principle subject to the regulation and must meet the limit values. You can provide proof in two ways:
- Via a manufacturer's certificate proving that your model meets the values
- Via a measurement by your chimney sweep directly at the stove
Your chimney sweep is the most important point of contact. They record in the fireplace notice what applies to your system and whether action is needed. A quick call brings clarity fast and saves you lengthy guesswork. If the type plate is missing or illegible, the stove is deemed particularly old, and here too the professional helps with classification.
If the stove is no longer allowed
If your stove does not meet the values, you have three options: retrofit, replace or decommission. The first two are worth a sober look.
A dust separator filters the particulate matter out of the flue gas before it reaches the chimney. Only devices with building authority approval and proven separation efficiency are recognised. An electrostatic solution including installation is usually in the mid four-figure range, often between €1,500 and €3,000. A pure catalytic converter mainly reduces gases and is often not accepted as sufficient proof for particulate matter. If in doubt, ask your stove fitter which system suits your stove.
When which route pays off can be roughly classified as follows:
- Retrofitting is right if you are attached to an older, rarely used stove and want to keep it
- Replacement pays off more for heavily used stoves, because modern appliances burn cleaner, get more heat out of the wood and are more economical in operation
A new wood stove costs a four-figure sum depending on the model, but works to the current state of the art and is often the more economical choice over the years for frequent heaters.
What every permitted stove needs: the right fuel
Whether retrofitted or new, every stove is only as clean as what burns in it. Damp or inferior wood produces more particulate matter, more residue and less heat. Dry, well-stored firewood and high-quality wood briquettes burn more evenly, heat more efficiently and keep emissions low. This is exactly where HEIZFUXX® comes in: reliable fuels of clear quality, so your stove remains what it should be, a clean and cosy source of warmth. Clever heating starts with the fuel.
Conclusion: clear rules for heating with stoves
A wood stove is still allowed today as long as it burns cleanly. Anyone who meets the limit values of the 1st BImSchV, has retrofitted their stove with an approved dust separator, uses a modern appliance or falls under one of the exemptions has nothing to worry about. Only the old stoves that emit too much particulate matter and whose retrofitting deadline expired at the end of 2024 are affected. Whether your stove is one of them is reliably clarified by the type plate and a quick contact with the chimney sweep. And if the technology is right, the fuel decides the rest. Dry quality wood and good wood briquettes keep your stove clean and your home warm. That way the crackling fire in the evening remains what it should be, a piece of comfort with a clear conscience.
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