EP 0053503 A2 19820609 - Water heating apparatus.
Title (en)
Water heating apparatus.
Title (de)
Wassererhitzer.
Title (fr)
Chauffe-eau.
Publication
Application
Priority
IE 247980 A 19801128
Abstract (en)
The apparatus has a horizontal tunnel-like passage for hot combustion gases from a fuel burner (52) to a flue outlet (57). The passage is defined by several adjacent but discrete helical coils (59) each comprising from 3 to 12 turns of water conduit, such as copper tubing. A common source (54) feeds water separately to all the coils which in turn discharge heated water separately to a common outlet (55). In one embodiment, an additional outer set of coils (60), similarly connected, may create an annular space around the tunnel-like passage and an exterior water jacket (50) a second, outermost annular space. These spaces and the tunnel-like passage can be connected in various ways to impart series or parallel flow to the hot combustion gases therein. The apparatus is suitable for use in central heating systems.
IPC 1-7
IPC 8 full level
F24H 1/44 (2006.01)
CPC (source: EP)
F24H 1/26 (2013.01); F24H 1/43 (2013.01); F24H 1/44 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0053503 A2 19820609; EP 0053503 A3 19821208; IE 802479 L 19820528
DOCDB simple family (application)
EP 81305639 A 19811127; IE 247980 A 19801128