EP 0029783 B1 19850320 - DEVICE FOR RECOVERING CALORIFIC VALUES IN CHIMNEYS OF OPEN FIRES
Title (en)
DEVICE FOR RECOVERING CALORIFIC VALUES IN CHIMNEYS OF OPEN FIRES
Publication
Application
Priority
FR 7929619 A 19791127
Abstract (en)
[origin: EP0029783A1] 1. An arrangement for recovering the heat in open fireplaces comprising a space (9) having possibly one wall serving as a hearth plate (1) and one vertical wall serving as a back plate (4), over which air to be heated circulates, comprising also, within the space (9), a plurality of generally upwards directed and continuously rising tubes (14), said tubes (14) opening at the bottom transversely of the back plate (4), and, at the top, opening into the flue (8), characterized in that the top of said space (9) lets fireplace volume communicate directly with the flue (8), in that lower inlet openings of the tubes (14) are at the level of wood and/or burning embers, and in that said tubes (14) have a restricted cross-section area, of about 7 cm**2.
IPC 1-7
IPC 8 full level
F24B 1/188 (2006.01); F24B 7/04 (2006.01)
CPC (source: EP)
F24B 1/1886 (2013.01)
Designated contracting state (EPC)
AT BE CH DE GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0029783 A1 19810603; EP 0029783 B1 19850320; AT E12306 T1 19850415; DE 3070342 D1 19850425; FR 2472721 A1 19810703; FR 2472721 B1 19840622
DOCDB simple family (application)
EP 80401668 A 19801120; AT 80401668 T 19801120; DE 3070342 T 19801120; FR 7929619 A 19791127