(19)

(11)

EP 2 539 640 A2

(12)

(88) Date of publication A3: 11.10.2012 (43) Date of publication: 02.01.2013 Bulletin 2013/01 (21) Application number: 11711116.1 (22) Date of filing: 24.02.2011

(51) International Patent Classification (IPC):  F24D 19/10(2006.01) (86) International application number: PCT/GB2011/000251 (87) International publication number: WO 2011/104505 (01.09.2011 Gazette 2011/35)

(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: 25.02.2010 GB 201003158 (71) Applicant: Contec Heat Controls Ltd Deryshire DE56 4GQ (GB)	(72) Inventor: BRODERICK, Patrick Joseph Derbyshire DE56 4GQ (GB) (74) Representative: Thacker, Darran Ainsley  Serjeants LLP 25 The Crescent King Street Leicester LE1 6RX Leicester LE1 6RX (GB)