(19)
(11) EP 1 150 073 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
04.05.2005 Bulletin 2005/18

(43) Date of publication A2:
31.10.2001 Bulletin 2001/44

(21) Application number: 01660025.6

(22) Date of filing: 06.02.2001
(51) International Patent Classification (IPC)7: F24B 1/18, F24B 1/24
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 28.04.2000 FI 20001006

(71) Applicant: Nunnanlahden Uuni Oy
83940 Nunnanlahti (FI)

(72) Inventor:
  • Lehikoinen, Juhani
    83940 Nunnanlahti (FI)

(74) Representative: Helino, Timo Kalervo 
Papula Oy, P.O. Box 981
00101 Helsinki
00101 Helsinki (FI)

   


(54) Heat storing fireplace


(57) A heat-storing fireplace, comprising a firebox (1), a smoke flue (2) leading upward from the firebox to convey the flue gases into a chimney flue, and a heat storing mass (3) surrounding the firebox and the smoke flue. Within a certain stretch (4) in the upward leading smoke flue (2) of the fireplace, the inner circumference of the smoke flue increases from the firebox toward the chimney while the cross-sectional area of the smoke flue is either constant or decreasing.






Search report