(19)

(11)

EP 2 673 568 A2

(12)

(88) Date of publication A3: 26.09.2013 (43) Date of publication: 18.12.2013 Bulletin 2013/51 (21) Application number: 12708598.3 (22) Date of filing: 10.02.2012

(51) International Patent Classification (IPC):  F24D 19/10(2006.01) (86) International application number: PCT/NL2012/000013 (87) International publication number: WO 2012/108761 (16.08.2012 Gazette 2012/33)

(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 (30) Priority: 10.02.2011 NL 2006176 (71) Applicant: Intergas Heating Assets B.V. 7742 NA Coevorden (NL)	(72) Inventor: COOL, Peter, Jan NL-7241 GA Lochem (NL) (74) Representative: Land, Addick Adrianus Gosling et al Arnold & Siedsma Sweelinckplein 1 2517 GK Den Haag 2517 GK Den Haag (NL)