(19)

(11)

EP 4 505 123 A1

(12)

(43) Date of publication: 12.02.2025 Bulletin 2025/07 (21) Application number: 23712296.5 (22) Date of filing: 23.03.2023

(51) International Patent Classification (IPC):  F24H 1/20(2022.01) F24H 15/124(2022.01) F24H 9/45(2022.01) F24H 4/04(2006.01) F24H 15/223(2022.01) H05B 3/82(2006.01) (52) Cooperative Patent Classification (CPC): F24H 4/04; F24H 1/202; F24H 15/124; F24H 15/223; F24H 9/455; H05B 3/82 (86) International application number: PCT/EP2023/057408 (87) International publication number: WO 2023/186676 (05.10.2023 Gazette 2023/40)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 01.04.2022 EP 22166408 (71) Applicant: BDR Thermea Group B.V. 7332 BD Apeldoorn (NL)	(72) Inventors: PETRAZOLLER, Thibaut 7332 BD Apeldoorn (NL) CHASSAGNARD, Benjamin 7332 BD Apeldoorn (NL) ANTOINE, Florian 7332 BD Apeldoorn (NL) (74) Representative: Dennemeyer & Associates S.A.  Postfach 70 04 25 81304 München 81304 München (DE)