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EP 4 544 227 A1

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(43) Date of publication: 30.04.2025 Bulletin 2025/18 (21) Application number: 23733993.2 (22) Date of filing: 22.06.2023

(51) International Patent Classification (IPC):  F23D 14/02(2006.01) F23N 5/08(2006.01) F24H 8/00(2022.01) F23N 5/02(2006.01) F23N 5/24(2006.01) F24H 15/493(2022.01) (52) Cooperative Patent Classification (CPC): F23C 2900/9901; F23D 14/02; F23D 2203/1012; F23D 2203/102; F23N 2233/08; F24H 8/00; F24H 15/493; F23N 5/082; F23N 5/02; F23N 2231/10; F23N 5/242 (86) International application number: PCT/EP2023/066921 (87) International publication number: WO 2023/247681 (28.12.2023 Gazette 2023/52)

(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: 22.06.2022 EP 22180327 22.06.2022 EP 22180332 22.06.2022 EP 22180337 22.06.2022 EP 22180344 22.06.2022 EP 22180353 22.06.2022 EP 22180361 22.06.2022 EP 22180363 22.06.2022 EP 22180366 22.06.2022 EP 22180372 01.08.2022 EP 22188115 01.08.2022 EP 22188116 01.08.2022 EP 22188119 01.08.2022 EP 22188124 (71) Applicant: BDR Thermea Group B.V. 7332 BD Apeldoorn (NL)

(72) Inventors: RUTGERS, Job 7332 BD Apeldoorn (NL) BÖRGER, Saskia 7332 BD Apeldoorn (NL) WOUDSTRA, Jelmer 7332 BD Apeldoorn (NL) KAPUCU, Mehmet 7332 BD Apeldoorn (NL) PISONI, Andrea 7332 BD Apeldoorn (NL) POSTMA, Siebe 7332 BD Apeldoorn (NL) (74) Representative: Grabovac, Dalibor  AAP Patentanwaltskanzlei Grabovac Pfeivestlstr. 12 81243 München 81243 München (DE)