2023-10-25 00:00:00 According to the new ordinance for safeguarding the energy supply via medium-term effective measures (Medium-Term Energy Supply Securing Measures Ordinance - EnSimiMaV), owners of gas central heating (including floor heating) must have their system checked by a heating engineer, energy consultant or chimney sweep from October 1st, 2022. Obligation to check and optimize the heating system: A short checklist specifies four test points for natural gas-powered heating systems, the results of which must be documented in text form: