(19)

(11)

EP 3 574 261 A1

(12)

(43) Date of publication: 04.12.2019 Bulletin 2019/49 (21) Application number: 18702535.8 (22) Date of filing: 25.01.2018

(51) International Patent Classification (IPC):  F23J 15/02(2006.01) F23G 5/46(2006.01) F23C 10/00(2006.01) F23G 5/30(2006.01) F23G 7/10(2006.01) F23G 5/027(2006.01) (86) International application number: PCT/GB2018/050216 (87) International publication number: WO 2018/138505 (02.08.2018 Gazette 2018/31)

(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: MA MD TN (30) Priority: 27.01.2017 GB 201701385 (71) Applicant: Heat Recovery Solutions Limited London, Greater London W7 2QE (GB)	(72) Inventor: WICKHAM, Mark London Greater London W7 2QE (GB) (74) Representative: Barker Brettell LLP  100 Hagley Road Edgbaston Birmingham B16 8QQ Birmingham B16 8QQ (GB)