(19)

(11)

EP 4 562 354 A1

(12)

(43) Date of publication: 04.06.2025 Bulletin 2025/23 (21) Application number: 23761195.9 (22) Date of filing: 26.07.2023

(51) International Patent Classification (IPC):  F24H 4/04(2006.01) F24H 9/20(2022.01) F24H 9/02(2006.01) (52) Cooperative Patent Classification (CPC): F24H 4/04; F24H 9/02; F24H 9/2021; F24H 9/2007; F24D 2200/29; F24D 2200/12; F24D 2200/08 (86) International application number: PCT/GB2023/051980 (87) International publication number: WO 2024/023513 (01.02.2024 Gazette 2024/05)

(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: 29.07.2022 GB 202211118 (71) Applicant: Octopus Energy Heating Limited London, W1D 1NN (GB)	(72) Inventor: KONOWALCZYK, Peter London Greater London W1D 1NN (GB) (74) Representative: IK-IP LTD  3 Lloyd's Avenue London, Greater London EC3N 3DS London, Greater London EC3N 3DS (GB)