EP 1687574 A1 20060809 - AN IMPROVED ELECTRIC BOILER
Title (en)
AN IMPROVED ELECTRIC BOILER
Title (de)
VERBESSERTER ELEKTRISCHER KESSEL
Title (fr)
CHAUDIERE AMELIOREE
Publication
Application
Priority
- GB 2004004581 W 20041029
- GB 0325399 A 20031031
Abstract (en)
[origin: WO2005045327A1] An electric boiler has a heat exchange unit (10) in which a heat transfer medium, usually water, is heated. Energy for the heating is through heating elements (13), whose activation is governed by a control means (14) operating on switches. The switches are either electromechanical, triacs or a combination thereof. The heating elements (13) comprise elements of at least two different power ratings, with elements of the same rating being combined together in a bank. The activation sequence of the heating elements (13) is controlled to minimise the sudden increased load applied to the power supply of the premises on which the boiler is located. In order to reduce the risk of excess heat being applied, the elements can be activated by a burst firing sequence in which power is supplied to the element for only a short period of time.
IPC 8 full level
F24H 9/20 (2006.01)
CPC (source: EP US)
F24H 9/2028 (2013.01 - EP US); F24H 15/128 (2022.01 - EP US); F24H 15/174 (2022.01 - EP US); F24H 15/215 (2022.01 - EP US); F24H 15/219 (2022.01 - EP US); F24H 15/37 (2022.01 - EP US); F24H 15/407 (2022.01 - EP US); F24H 15/414 (2022.01 - EP US)
Citation (search report)
See references of WO 2005045327A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005045327 A1 20050519; EP 1687574 A1 20060809; GB 0325399 D0 20031203
DOCDB simple family (application)
GB 2004004581 W 20041029; EP 04791618 A 20041029; GB 0325399 A 20031031