(19)

(11)

EP 1 159 567 A1

(12)

(43) Date of publication: 05.12.2001 Bulletin 2001/49 (21) Application number: 99958591.2 (22) Date of filing: 11.11.1999

(51) International Patent Classification (IPC)7: F24D 3/08, F24D 3/18 (86) International application number: PCT/SE9902/045 (87) International publication number: WO 0032/992 (08.06.2000 Gazette 2000/23)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 16.11.1998 SE 9803892 (71) Applicant: Första Närvärmeverket AB 161 11 Bromma (SE)	(72) Inventor: GÖRANSSON, Hans-Göran S-821 94 Bollnäs (SE) (74) Representative: Olsson, Jan et al Bjerkéns Patentbyra KBP.O.Box 1274 801 37 Gävle 801 37 Gävle (SE)