International Fachagentur Nachwachsende Rohstoffe e. V.


Federal Immission Control Act (1.BImSchV)

The so-called Small and Medium Size Firing Installations Ordinance (1st BImSchV) determines the fuels permissible for use in boilers and stoves, as well as technical and emission-related requirements and the demands for their supervision by the district chimney sweep. The amendment to this legislation in 2017 issued significantly more demanding requirements regarding efficiency and emission levels for newly-installed heating units. For example, stoves or fireplaces must never exceed a dust limit of 0.15 g/m³ and a carbon monoxide limit of 4 g/m³. Rules were also set up with regard to installations already in use which must be given a retrofit at a certain point in time or be taken out of service. A variety of solid bio- fuels, such as grain and renewable resources, were newly designated to be standard fuels – subject to meeting specific stipulations – and more specific requirements were established with regard to the properties of fuels sourced from wood. Fitting into this, the aim behind stricter requirements with regard to emissions of particles and CO, as well as provision of advice to the public in the case of manually-fed biomass installations is to reduce emission levels and nuisance to neighbours, especially in the case of stoves. Further information is available from the district chimney sweep.

The Energy Saving Ordinance (EnEV, valid since May 2014) establishes requirements for buildings that are to be newly built and also to existing buildings and installations. It also establishes requirements regarding installations for heating, ventilation, and air-conditioning units, as well as water processing facilities. The Energy Saving Ordinance stipulates the issue of energy certificates that indicate and make transparent the buildings' energy consumption for the respective owner of the property and for tenants in residential units.

Source: FNR/Hermann Hansen
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