Water heaters having heat generating means

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F24Heating devices F24HFLUID HEATERS

F24H1/00Water heaters having heat generating means

F24H1/0009of the reduced pressure or vacuum steam type F24H1/0018using electric energy supply F24H1/0027using fluid fuel F24H1/0036of the sealed type F24H1/0045with catalytic combustion F24H1/0054Gas- or oil-fired immersion heaters for open containers or ponds F24H1/0063using solid fuel F24H1/0072Special adaptations F24H1/0081for bath tubs F24H1/009for vehicle systems F24H1/06Portable or mobile F24H1/08Packaged or self-contained boilers F24H1/10Continuous-flow heaters, i.e. in which heat is generated only while the water is flowing F24H1/101using electric energy supply F24H1/102with resistance F24H1/103with bare resistances in direct contact with the fluid F24H1/105formed by the tube through which the fluid flows F24H1/106with electrodes F24H1/107using fluid fuel F24H1/108using solid fuel F24H1/12in which the water is kept separate from the heating medium F24H1/121using electric energy supply F24H1/122combined with storage tank F24H1/124using fluid fuel F24H1/125combined with storage tank F24H1/127using solid fuel F24H1/128combined with storage tank F24H1/14by tubes F24H1/142using electric energy supply F24H1/145using fluid fuel F24H1/147using solid fuel F24H1/16helically or spirally coiled F24H1/162using electrical energy supply F24H1/165using fluid fuel F24H1/167using solid fuel F24H1/18Water storage heaters F24H1/181Construction of the tank F24H1/182Insulation F24H1/183Inner linings F24H1/185using electric energy supply F24H1/186using fluid fuel F24H1/187using solid fuel F24H1/188with means for compensating water expansion F24H1/20with immersed heating elements F24H1/201using electric energy supply F24H1/202with resistances F24H1/203with electrodes F24H1/205with furnace tubes F24H1/206with submerged combustion chamber F24H1/207with water tubes F24H1/208with tubes filled with heat transfer fluid F24H1/22Water heaters other than continuous-flow or water storage heaters F24H1/225electrical central heating boilers F24H1/24with water mantle surrounding the combustion chamber or chambers F24H1/26the water mantle forming an integral body F24H1/263with a dry-wall combustion chamber F24H1/28including one or more furnace or fire tubes F24H1/282with flue gas passages built-up by coaxial water mantles F24H1/285with the fire tubes arranged alongside the combustion chamber F24H1/287with the fire tubes arranged in line with the combustion chamber F24H1/30the water mantle being built up from sections F24H1/32with vertical sections arranged side by side F24H1/34with water chamber arranged adjacent to the combustion chamber or chambers F24H1/36the water chamber including one or more fire tubes F24H1/38with water contained in separate elements F24H1/40with water tube or tubes F24H1/403the water tubes being arranged in one or more circles around the burner F24H1/406the tubes forming a membrane wall F24H1/41in serpentine form F24H1/43helically or spirally coiled F24H1/44with combinations of two or more of the types covered by groups F24H1/24 - F24H1/40 F24H1/445with integrated flue gas condenser F24H1/46Water heaters having plural combustion chambers F24H1/48Water heaters for central heating incorporating heaters for domestic water F24H1/50incorporating domestic water tanks F24H1/52incorporating heat exchangers for domestic water F24H1/523Heat exchangers for sanitary water directly heated by the burner F24H1/526Pipes in pipe heat exchangers for sanitary water