(19)
(11) EP 2 461 095 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
26.11.2014 Bulletin 2014/48

(43) Date of publication A2:
06.06.2012 Bulletin 2012/23

(21) Application number: 11191141.8

(22) Date of filing: 29.11.2011
(51) International Patent Classification (IPC): 
F23B 80/04(2006.01)
F23J 13/04(2006.01)
F23J 13/06(2006.01)
F24B 1/195(2006.01)
(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

(30) Priority: 03.12.2010 FI 20106282

(71) Applicant: NunnaUuni Oy
83940 Nunnanlahti (FI)

(72) Inventor:
  • Mäkkeli, Hannu
    83940 Nunnanlahti (FI)

(74) Representative: Papula Oy 
P.O. Box 981
00101 Helsinki
00101 Helsinki (FI)

   


(54) Firebox of a fireplace


(57) The invention relates to a firebox of a fireplace including a grate (1) forming a base, an opening and closing door, a back wall (2), side walls (3) and a crown (4) as well as a flow outlet (5) at the top part of the firebox for leading flue gases out of the firebox. According to the invention, a turbulence element (6) is provided in connection with the flow outlet (5) for rendering substantially laminar flue gas flows flowing toward the flow outlet turbulent before the flow outlet.







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