The 1st Ordinance on the Implementation of the Federal Immission Control Act, or 1st BImSchV for short, is the ordinance on small and medium-sized combustion plants. It regulates the specifications and deadlines that stoves must comply with.
The second stage of immission protection has been in force since the beginning of 2015. It sets the limits of a stove at 0.125 g/m³ carbon monoxide (CO) and 0.04 g/m³ fine dust and requires at least 73% efficiency.
31 December 2020 was the deadline for filter retrofitting or decommissioning for stoves that do not meet these values and were built and put into operation between 1 January 1985 and 31 December 1994.
Stoves that do not meet these values and were built and put into operation after 1 January 1995 must be retrofitted or taken out of operation by 31 December 2024.
You can find out whether your stove is grandfathered or must be replaced by 2024 here: https://cert.hki-online.de/geraete. If, in exceptional cases, a model is not in this database, please contact us as the manufacturer, stating the model and, if applicable, the appliance number.