(19)
(11) EP 0 480 595 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
19.11.1992 Bulletin 1992/47

(43) Date of publication A2:
15.04.1992 Bulletin 1992/16

(21) Application number: 91308662.5

(22) Date of filing: 24.09.1991
(51) International Patent Classification (IPC)5: F24C 3/10, F24C 3/00, F24B 1/18
(84) Designated Contracting States:
AT BE CH DE ES FR IT LI LU NL SE

(30) Priority: 10.10.1990 GB 9021987

(71) Applicant: CANNON INDUSTRIES LIMITED
Coseley, Bilston, West Midlands WV14 8XR (GB)

(72) Inventors:
  • Philips, Steven John
    Great Barr, Birmingham., B42 2DH (GB)
  • Gibson, Andrew David
    Erdington, Birmingham, B24 0AE (GB)

(74) Representative: Waters, Jeffrey et al
The General Electric Company, p.l.c. GEC Patent Department Waterhouse Lane
Chelmsford, Essex CM1 2QX
Chelmsford, Essex CM1 2QX (GB)


(56) References cited: : 
   
       


    (54) Gas fire


    (57) In a gas fire, the radiant heat output from imitation coal pieces 2 caused to radiate by flames from a burner 1 is supplemented by convective air drawn into the base of the fire and passing through duct 6 before emerging through outlets 7, the duct being transversed by flue tubes 8, 9, 10, 11 to which combustion gases from the burner pass in the direction of the arrows B.
    A problem with such a fire is if the flue outlet 12 become blocked because the flow of gases reverses direction relative to the arrows B and the burner then combusts within unsafe limits if the doors 4, 5 are closed. To overcome this some of the flue tubes 8, 10 are provided with openings 10a, partially shielded by shield 22, to allow escape of recirculating combustion products into the convection duct, thereby allowing the burner to continue operation in safe limits in the event of flue blockage.






    Search report