(19)

(11)

EP 4 352 415 A1

(12)

(43) Date of publication: 17.04.2024 Bulletin 2024/16 (21) Application number: 22731247.7 (22) Date of filing: 02.06.2022

(51) International Patent Classification (IPC):  F23N 1/02(2006.01) F23N 5/08(2006.01) F23N 1/00(2006.01) F23N 5/24(2006.01) F23N 5/12(2006.01) F23N 5/10(2006.01) (52) Cooperative Patent Classification (CPC): F23C 2900/9901; F23N 2231/10; F23N 2231/12; F23N 5/082; F23N 5/123; F23N 5/242; F23N 1/002; F23N 1/022; F23N 5/102; F23N 2239/04; F23N 2229/14; F23N 2237/08 (86) International application number: PCT/EP2022/065019 (87) International publication number: WO 2022/258477 (15.12.2022 Gazette 2022/50)

(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 MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 11.06.2021 EP 21179112 (71) Applicant: BDR Thermea Group B.V. 7332 BD Apeldoorn (NL)	(72) Inventors: PISONI, Andrea 7332 BD Apeldoorn (NL) RUTGERS, Job 7332 BD Apeldoorn (NL) TEMPERATO, Sebastiano 7332 BD Apeldoorn (NL) (74) Representative: Dennemeyer & Associates S.A.  Postfach 70 04 25 81304 München 81304 München (DE)