F24H1/00	7	Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters (steam boilers F22B)	F24H1/00	F24H1/00		1433
F24H1/0009	8	{of the reduced pressure or vacuum steam type}	F24H1/00	F24H1/00		103
F24H1/0018	8	{using electric energy supply}	F24H1/00	F24H1/00		571
F24H1/0027	8	{using fluid fuel}	F24H1/00	F24H1/00		375
F24H1/0036	9	{of the sealed type}	F24H1/00	F24H1/00		72
F24H1/0045	9	{with catalytic combustion}	F24H1/00	F24H1/00		319
F24H1/0054	8	{Gas- or oil-fired immersion heaters for open containers or ponds}	F24H1/00	F24H1/00		83
F24H1/0063	8	{using solid fuel}	F24H1/00	F24H1/00		153
F24H1/0072	8	{Special adaptations}	F24H1/00	F24H1/00		177
F24H1/009	9	{for vehicle systems}	F24H1/00	F24H1/00		434
F24H1/06	8	Portable or mobile, e.g. collapsible	F24H1/06	F24H1/06		763
F24H1/08	8	Packaged or self-contained boilers, i.e. water heaters with control devices and pump in a single unit	F24H1/08	F24H1/08		710
F24H1/10	8	Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium	F24H1/10	F24H1/10		607
F24H1/101	9	{using electric energy supply}	F24H1/10	F24H1/10		1019
F24H1/102	10	{with resistance}	F24H1/10	F24H1/10		1497
F24H1/103	11	{with bare resistances in direct contact with the fluid}	F24H1/10	F24H1/10		695
F24H1/105	11	{formed by the tube through which the fluid flows}	F24H1/10	F24H1/10		382
F24H1/106	10	{with electrodes}	F24H1/10	F24H1/10		676
F24H1/107	9	{using fluid fuel}	F24H1/10	F24H1/10		1019
F24H1/108	9	{using solid fuel}	F24H1/10	F24H1/10		18
F24H1/12	9	in which the water is kept separate from the heating medium	F24H1/12	F24H1/12		253
F24H1/121	10	{using electric energy supply}	F24H1/12	F24H1/12		830
F24H1/122	11	{combined with storage tank}	F24H1/12	F24H1/12		143
F24H1/124	10	{using fluid fuel}	F24H1/12	F24H1/12		553
F24H1/125	11	{combined with storage tank}	F24H1/12	F24H1/12		97
F24H1/127	10	{using solid fuel}	F24H1/12	F24H1/12		17
F24H1/128	11	{combined with storage tank}	F24H1/12	F24H1/12		10
F24H1/14	10	by tubes, e.g. bent in serpentine form	F24H1/14	F24H1/14		238
F24H1/142	11	{using electric energy supply}	F24H1/14	F24H1/14		1144
F24H1/145	11	{using fluid fuel}	F24H1/14	F24H1/14		960
F24H1/147	11	{using solid fuel}	F24H1/14	F24H1/14		25
F24H1/16	11	helically or spirally coiled	F24H1/16	F24H1/16		141
F24H1/162	12	{using electrical energy supply}	F24H1/16	F24H1/16		467
F24H1/165	12	{using fluid fuel}	F24H1/16	F24H1/16		535
F24H1/167	12	{using solid fuel}	F24H1/16	F24H1/16		34
F24H1/18	8	Water-storage heaters	F24H1/18	F24H1/18		1118
F24H1/181	9	{Construction of the tank}	F24H1/18	F24H1/18		988
F24H1/182	10	{Insulation}	F24H1/18	F24H1/18		845
F24H1/183	10	{Inner linings}	F24H1/18	F24H1/18		185
F24H1/185	9	{using electric energy supply (F24H1/201 takes precedence)}	F24H1/18	F24H1/18		1260
F24H1/186	9	{using fluid fuel}	F24H1/18	F24H1/18		792
F24H1/187	9	{using solid fuel}	F24H1/18	F24H1/18		102
F24H1/188	9	{with means for compensating water expansion}	F24H1/18	F24H1/18		236
F24H1/20	9	with immersed heating elements, e.g. electric elements or furnace tubes	F24H1/20	F24H1/20		696
F24H1/201	10	{using electric energy supply}	F24H1/20	F24H1/20		1315
F24H1/202	11	{with resistances}	F24H1/20	F24H1/20		2436
F24H1/203	11	{with electrodes}	F24H1/20	F24H1/20		162
F24H1/205	10	{with furnace tubes}	F24H1/20	F24H1/20		1011
F24H1/206	11	{with submerged combustion chamber}	F24H1/20	F24H1/20		373
F24H1/207	11	{with water tubes}	F24H1/20	F24H1/20		119
F24H1/208	10	{with tubes filled with heat transfer fluid}	F24H1/20	F24H1/20		525
F24H1/22	8	Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating	F24H1/22	F24H1/22		880
F24H1/225	9	{electrical central heating boilers}	F24H1/22	F24H1/22		555
F24H1/24	9	with water mantle surrounding the combustion chamber or chambers	F24H1/24	F24H1/24		402
F24H1/26	10	the water mantle forming an integral body	F24H1/26	F24H1/26		1133
F24H1/263	11	{with a dry-wall combustion chamber}	F24H1/26	F24H1/26		359
F24H1/28	11	including one or more furnace or fire tubes	F24H1/28	F24H1/28		1078
F24H1/282	12	{with flue gas passages built-up by coaxial water mantles}	F24H1/28	F24H1/28		328
F24H1/285	12	{with the fire tubes arranged alongside the combustion chamber}	F24H1/28	F24H1/28		540
F24H1/287	12	{with the fire tubes arranged in line with the combustion chamber}	F24H1/28	F24H1/28		379
F24H1/30	10	the water mantle being built up from sections	F24H1/30	F24H1/30		334
F24H1/32	11	with vertical sections arranged side by side	F24H1/32	F24H1/32		795
F24H1/34	9	with water chamber arranged adjacent to the combustion chamber or chambers, e.g. above or at side	F24H1/34	F24H1/34		1160
F24H1/36	10	the water chamber including one or more fire tubes	F24H1/36	F24H1/36		850
F24H1/38	9	with water contained in separate elements, e.g. radiator-type element	F24H1/38	F24H1/38		580
F24H1/40	9	with water tube or tubes	F24H1/40	F24H1/40		1976
F24H1/403	10	{the water tubes being arranged in one or more circles around the burner}	F24H1/40	F24H1/40		251
F24H1/406	10	{the tubes forming a membrane wall}	F24H1/40	F24H1/40		273
F24H1/41	10	in serpentine form	F24H1/41	F24H1/41		287
F24H1/43	10	helically or spirally coiled	F24H1/43	F24H1/43		1258
F24H1/44	9	with combinations of two or more of the types covered by groups F24H1/24 - F24H1/40	F24H1/44	F24H1/44		1430
F24H1/445	10	{with integrated flue gas condenser}	F24H1/44	F24H1/44		88
F24H1/46	8	Water heaters having plural combustion chambers	F24H1/46	F24H1/46		286
F24H1/48	8	Water heaters for central heating incorporating heaters for domestic water	F24H1/48	F24H1/48		434
F24H1/50	9	incorporating domestic water tanks	F24H1/50	F24H1/50		558
F24H1/52	9	incorporating heat exchangers for domestic water (F24H1/50 takes precedence)	F24H1/52	F24H1/52		1232
F24H1/523	10	{Heat exchangers for sanitary water directly heated by the burner}	F24H1/52	F24H1/52		93
F24H1/526	10	{Pipes in pipe heat exchangers for sanitary water}	F24H1/52	F24H1/52		101
F24H1/54	8	Water heaters for bathtubs or pools; Water heaters for reheating the water in bathtubs or pools	F24H1/54	F24H1/54		873
F24H3/00	7	Air heaters	F24H3/00	F24H3/00		1724
F24H3/002	8	{using electric energy supply}	F24H3/00	F24H3/00		1945
F24H3/004	9	{with a closed circuit for a heat transfer liquid}	F24H3/00	F24H3/00		870
F24H3/006	8	{using fluid fuel}	F24H3/00	F24H3/00		1528
F24H3/008	8	{using solid fuel}	F24H3/00	F24H3/00		412
F24H3/02	8	with forced circulation	F24H3/02	F24H3/02		750
F24H3/022	9	{using electric energy supply}	F24H3/02	F24H3/02		465
F24H3/025	9	{using fluid fuel}	F24H3/02	F24H3/02		364
F24H3/027	9	{using solid fuel}	F24H3/02	F24H3/02		146
F24H3/04	9	the air being in direct contact with the heating medium, e.g. electric heating element	F24H3/04	F24H3/04		513
F24H3/0405	10	{using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between (F24H3/06, F24H3/08, F24H3/10 take precedence)}	F24H3/04	F24H3/04		1944
F24H3/0411	11	{for domestic or space-heating systems}	F24H3/04	F24H3/04		1377
F24H3/0417	12	{portable or mobile}	F24H3/04	F24H3/04		1155
F24H3/0423	11	{hand-held air guns}	F24H3/04	F24H3/04		348
F24H3/0429	11	{For vehicles}	F24H3/04	F24H3/04		627
F24H3/0435	12	{Structures comprising heat spreading elements in the form of fins}	F24H3/04	F24H3/04		337
F24H3/0441	12	{Interfaces between the electrodes of a resistive heating element and the power supply means}	F24H3/04	F24H3/04		150
F24H3/0447	13	{Forms of the electrode terminals, e.g. tongues or clips}	F24H3/04	F24H3/04		128
F24H3/0452	12	{Frame constructions}	F24H3/04	F24H3/04		105
F24H3/0458	13	{One-piece frames}	F24H3/04	F24H3/04		43
F24H3/0464	13	{Two-piece frames, e.g. two-shell frames, also including frames as a central body with two covers}	F24H3/04	F24H3/04		89
F24H3/047	13	{Multiple-piece frames assembled on their four or more edges}	F24H3/04	F24H3/04		45
F24H3/0476	13	{Means for putting the electric heaters in the frame under strain, e.g. with springs}	F24H3/04	F24H3/04		102
F24H3/0482	13	{Frames with integrated fan}	F24H3/04	F24H3/04		24
F24H3/0488	10	{using fluid fuel}	F24H3/04	F24H3/04		730
F24H3/0494	10	{using solid fuel}	F24H3/04	F24H3/04		26
F24H3/06	9	the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators	F24H3/06	F24H3/06		407
F24H3/062	10	{using electric energy supply; the heating medium being the resistive element (F24H3/08, F24H3/10 takes precedence)}	F24H3/06	F24H3/06		177
F24H3/065	10	{using fluid fuel}	F24H3/06	F24H3/06		1164
F24H3/067	10	{using solid fuel}	F24H3/06	F24H3/06		291
F24H3/08	10	by tubes	F24H3/08	F24H3/08		379
F24H3/081	11	{using electric energy supply}	F24H3/08	F24H3/08		191
F24H3/082	12	{The tubes being an electrical isolator containing the heater}	F24H3/08	F24H3/08		57
F24H3/084	12	{The tubes being an electrode for the heater}	F24H3/08	F24H3/08		3
F24H3/085	12	{The tubes containing an electrically heated intermediate fluid, e.g. water}	F24H3/08	F24H3/08		285
F24H3/087	11	{using fluid fuel}	F24H3/08	F24H3/08		932
F24H3/088	11	{using solid fuel}	F24H3/08	F24H3/08		286
F24H3/10	10	by plates	F24H3/10	F24H3/10		42
F24H3/102	11	{using electric energy supply}	F24H3/10	F24H3/10		56
F24H3/105	11	{using fluid fuel}	F24H3/10	F24H3/10		274
F24H3/107	11	{using solid fuel}	F24H3/10	F24H3/10		18
F24H3/12	8	with additional heating arrangements	F24H3/12	F24H3/12		142
F24H4/00	7	Fluid heaters characterised by the use of heat pumps	F24H4/00	F24H4/00		152
F24H4/02	8	Water heaters	F24H4/02	F24H4/02		2989
F24H4/04	9	Storage heaters	F24H4/04	F24H4/04		1670
F24H4/06	8	Air heaters	F24H4/06	F24H4/06		224
F24H6/00	7	Combined water and air heaters	F24H6/00	F24H6/00		970
F24H7/00	7	Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release	F24H7/00	F24H7/00		455
F24H7/002	8	{using electrical energy supply}	F24H7/00	F24H7/00		574
F24H7/005	8	{using fluid fuel}	F24H7/00	F24H7/00		111
F24H7/007	8	{using solid fuel}	F24H7/00	F24H7/00		77
F24H7/02	8	the released heat being conveyed to a transfer fluid	F24H7/02	F24H7/02		490
F24H7/0208	9	{using electrical energy supply}	F24H7/02	F24H7/02		421
F24H7/0216	10	{the transfer fluid being air}	F24H7/02	F24H7/02		234
F24H7/0225	11	{with supplementary heating means}	F24H7/02	F24H7/02		30
F24H7/0233	10	{the transfer fluid being water}	F24H7/02	F24H7/02		504
F24H7/0241	11	{with supplementary heating means}	F24H7/02	F24H7/02		38
F24H7/025	9	{using fluid fuel}	F24H7/02	F24H7/02		24
F24H7/0258	10	{the transfer fluid being air}	F24H7/02	F24H7/02		31
F24H7/0266	10	{the transfer fluid being water}	F24H7/02	F24H7/02		96
F24H7/0275	9	{using solid fuel}	F24H7/02	F24H7/02		13
F24H7/0283	10	{the transfer fluid being air}	F24H7/02	F24H7/02		24
F24H7/0291	10	{the transfer fluid being water}	F24H7/02	F24H7/02		41
F24H7/04	9	with forced circulation of the transfer fluid	F24H7/04	F24H7/04		274
F24H7/0408	10	{using electrical energy supply}	F24H7/04	F24H7/04		61
F24H7/0416	11	{the transfer fluid being air}	F24H7/04	F24H7/04		533
F24H7/0425	12	{with supplementary heating means}	F24H7/04	F24H7/04		46
F24H7/0433	11	{the transfer medium being water}	F24H7/04	F24H7/04		526
F24H7/0441	12	{with supplementary heating means}	F24H7/04	F24H7/04		60
F24H7/045	10	{using fluid fuel}	F24H7/04	F24H7/04		8
F24H7/0458	11	{the transfer fluid being air}	F24H7/04	F24H7/04		35
F24H7/0466	11	{the transfer fluid being water}	F24H7/04	F24H7/04		96
F24H7/0475	10	{using solid fuel}	F24H7/04	F24H7/04		1
F24H7/0483	11	{the transfer fluid being air}	F24H7/04	F24H7/04		15
F24H7/0491	11	{the transfer fluid being water}	F24H7/04	F24H7/04		29
F24H7/06	8	the released heat being radiated	F24H7/06	F24H7/06		54
F24H7/062	9	{with electrical energy supply}	F24H7/06	F24H7/06		78
F24H7/065	9	{with fluid fuel}	F24H7/06	F24H7/06		4
F24H7/067	9	{with solid fuel}	F24H7/06	F24H7/06		16
F24H8/00	7	Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation	F24H8/00	F24H8/00		1912
F24H8/003	8	{having means for moistening the combustion air with condensate from the combustion gases}	F24H8/00	F24H8/00		184
F24H8/006	8	{Means for removing condensate from the heater}	F24H8/00	F24H8/00		823
F24H9/00	7	Details	F24H9/00	F24H9/00		994
F24H9/0005	8	{for water heaters}	F24H9/00	F24H9/00		5635
F24H9/001	9	{Guiding means}	F24H9/00	F24H9/00		236
F24H9/0015	10	{in water channels}	F24H9/00	F24H9/00		1082
F24H9/0021	11	{Sleeves surrounding heating elements or heating pipes, e.g. pipes filled with heat transfer fluid, for guiding heated liquid}	F24H9/00	F24H9/00		534
F24H9/0026	10	{in combustion gas channels}	F24H9/00	F24H9/00		1471
F24H9/0031	11	{with means for changing or adapting the path of the flue gas}	F24H9/00	F24H9/00		489
F24H9/0036	9	{Dispositions against condensation of combustion products}	F24H9/00	F24H9/00		605
F24H9/0042	9	{Cleaning arrangements}	F24H9/00	F24H9/00		1674
F24H9/0052	8	{for air heaters}	F24H9/00	F24H9/00		1060
F24H9/0057	9	{Guiding means}	F24H9/00	F24H9/00		141
F24H9/0063	10	{in air channels}	F24H9/00	F24H9/00		818
F24H9/0068	10	{in combustion gas channels}	F24H9/00	F24H9/00		281
F24H9/0073	9	{Arrangement or mounting of means for forcing the circulation of air}	F24H9/00	F24H9/00		726
F24H9/0078	10	{for storage heaters}	F24H9/00	F24H9/00		54
F24H9/0084	8	{Combustion air preheating}	F24H9/00	F24H9/00		237
F24H9/0089	9	{by double wall boiler mantle}	F24H9/00	F24H9/00		54
F24H9/0094	8	{having means for transporting the boiler}	F24H9/00	F24H9/00		109
F24H9/02	8	Casings; Cover lids; Ornamental panels	F24H9/02	F24H9/02		5046
F24H9/06	8	Arrangement of mountings or supports	F24H9/06	F24H9/06		2413
F24H9/12	8	Arrangements for connecting heaters to circulation pipes	F24H9/12	F24H9/12		274
F24H9/13	9	for water heaters	F24H9/13	F24H9/13		1180
F24H9/133	10	{Storage heaters}	F24H9/13	F24H9/13		1494
F24H9/136	11	{Arrangement of inlet valves used therewith}	F24H9/13	F24H9/13		302
F24H9/139	10	{Continuous flow heaters}	F24H9/13	F24H9/13		499
F24H9/14	8	Arrangements for connecting different sections, e.g. in water heaters&#160; (arrangements for connecting heaters to circulation pipes F24H9/12)	F24H9/14	F24H9/14		1062
F24H9/142	9	{Connecting hydraulic components}	F24H9/14	F24H9/14		431
F24H9/144	10	{Valve seats, piping and heat exchanger connections integrated into a one-piece hydraulic unit}	F24H9/14	F24H9/14		191
F24H9/146	9	{Connecting elements of a heat exchanger}	F24H9/14	F24H9/14		588
F24H9/148	9	{Arrangements of boiler components on a frame or within a casing to build the fluid heater, e.g. boiler}	F24H9/14	F24H9/14		410
F24H9/16	8	Arrangements for water drainage&#160;	F24H9/16	F24H9/16		1099
F24H9/17	9	Means for retaining water leaked from heaters	F24H9/17	F24H9/17		209
F24H9/18	8	Arrangement or mounting of grates or heating means	F24H9/18	F24H9/18		654
F24H9/1809	9	for water heaters	F24H9/1809	F24H9/1809		1605
F24H9/1818	10	Arrangement or mounting of electric heating means	F24H9/1818	F24H9/1818		6262
F24H9/1827	11	{Positive temperature coefficient [PTC] resistor}	F24H9/1818	F24H9/18		285
F24H9/1832	10	Arrangement or mounting of combustion heating means, e.g. grates or burners	F24H9/1832	F24H9/1832		116
F24H9/1836	11	using fluid fuel	F24H9/1836	F24H9/1836		3566
F24H9/1845	11	using solid fuel	F24H9/1845	F24H9/1845		1704
F24H9/1854	9	for air heaters	F24H9/1854	F24H9/1854		332
F24H9/1863	10	Arrangement or mounting of electric heating means	F24H9/1863	F24H9/1863		1886
F24H9/1872	11	{PTC resistor}	F24H9/1863	F24H9/18		903
F24H9/1877	10	Arrangement or mounting of combustion heating means, e.g. grates or burners	F24H9/1877	F24H9/1877		20
F24H9/1881	11	using fluid fuel	F24H9/1881	F24H9/1881		772
F24H9/189	11	using solid fuel	F24H9/189	F24H9/189		351
F24H9/20	8	Arrangement or mounting of control or safety devices	F24H9/20	F24H9/20		1328
F24H9/2007	9	{for water heaters}	F24H9/20	F24H9/20		4690
F24H9/2014	10	{using electrical energy supply}	F24H9/20	F24H9/20		2203
F24H9/2021	11	{Storage heaters}	F24H9/20	F24H9/20		3735
F24H9/2028	11	{Continuous-flow heaters}	F24H9/20	F24H9/20		2210
F24H9/2035	10	{using fluid fuel}	F24H9/20	F24H9/20		5711
F24H9/2042	11	{Preventing or detecting the return of combustion gases}	F24H9/20	F24H9/20		202
F24H9/205	12	{Closing the energy supply}	F24H9/20	F24H9/20		160
F24H9/2057	10	{using solid fuel}	F24H9/20	F24H9/20		406
F24H9/2064	9	{for air heaters}	F24H9/20	F24H9/20		504
F24H9/2071	10	{using electrical energy supply}	F24H9/20	F24H9/20		1481
F24H9/2078	11	{Storage heaters}	F24H9/20	F24H9/20		418
F24H9/2085	10	{using fluid fuel}	F24H9/20	F24H9/20		907
F24H9/2092	10	{using solid fuel}	F24H9/20	F24H9/20		195
F24H9/25	9	of remote control devices or control-panels	F24H9/25	F24H9/25		233
F24H9/28	10	characterised by the graphical user interface [GUI]	F24H9/28	F24H9/28		71
F24H9/40	8	Arrangements for preventing corrosion	F24H9/40	F24H9/40		42
F24H9/45	9	for preventing galvanic corrosion, e.g. cathodic or electrolytic means	F24H9/45	F24H9/45		373
F24H9/455	10	{for water heaters}	F24H9/45	F24H9/45		311
F24H9/457	10	{for air heaters}	F24H9/45	F24H9/45		1
F24H15/00	7	Control of fluid heaters	F24H15/00	F24H15/00		13
F24H15/10	8	characterised by the purpose of the control	F24H15/10	F24H15/10		111
F24H15/104	9	Inspection; Diagnosis; Trial operation	F24H15/104	F24H15/104		397
F24H15/108	9	Resuming operation, e.g. after power outages	F24H15/108	F24H15/108		28
F24H15/112	9	Preventing or detecting blocked flues	F24H15/112	F24H15/112		34
F24H15/116	10	Disabling the heating means in response thereto	F24H15/116	F24H15/116		35
F24H15/12	9	Preventing or detecting fluid leakage	F24H15/12	F24H15/12		345
F24H15/124	9	Preventing or detecting electric faults, e.g. electric leakage	F24H15/124	F24H15/124		197
F24H15/128	9	Preventing overheating	F24H15/128	F24H15/128		526
F24H15/132	10	Preventing the operation of water heaters with low water levels, e.g. dry-firing	F24H15/132	F24H15/132		301
F24H15/136	9	Defrosting or de-icing; Preventing freezing	F24H15/136	F24H15/136		374
F24H15/14	9	Cleaning; Sterilising; Preventing contamination by bacteria or microorganisms, e.g. by replacing fluid in tanks or conduits	F24H15/14	F24H15/14		310
F24H15/144	9	Measuring or calculating energy consumption	F24H15/144	F24H15/144		280
F24H15/148	10	Assessing the current energy consumption	F24H15/148	F24H15/148		145
F24H15/152	10	Forecasting future energy consumption	F24H15/152	F24H15/152		81
F24H15/156	9	Reducing the quantity of energy consumed; Increasing efficiency	F24H15/156	F24H15/156		915
F24H15/16	9	Reducing cost using the price of energy, e.g. choosing or switching between different energy sources	F24H15/16	F24H15/16		101
F24H15/164	10	where the price of the electric supply changes with time	F24H15/164	F24H15/164		233
F24H15/168	9	Reducing the electric power demand peak	F24H15/168	F24H15/168		123
F24H15/172	9	Scheduling based on user demand, e.g. determining starting point of heating	F24H15/172	F24H15/172		243
F24H15/174	9	Supplying heated water with desired temperature or desired range of temperature	F24H15/174	F24H15/174		1535
F24H15/175	10	where the difference between the measured temperature and a set temperature is kept under a predetermined value	F24H15/175	F24H15/175		225
F24H15/176	9	Improving or maintaining comfort of users	F24H15/176	F24H15/176		407
F24H15/18	10	Preventing sudden or unintentional change of fluid temperature	F24H15/18	F24H15/18		80
F24H15/184	9	Preventing harm to users from exposure to heated water, e.g. scalding	F24H15/184	F24H15/184		171
F24H15/196	9	Automatically filling bathtubs or pools; Reheating the water in bathtubs or pools	F24H15/196	F24H15/196		39
F24H15/20	8	characterised by control inputs	F24H15/20	F24H15/20		792
F24H15/204	9	Temperature of the air before heating	F24H15/204	F24H15/204		106
F24H15/208	9	Temperature of the air after heating	F24H15/208	F24H15/208		278
F24H15/212	9	Temperature of the water	F24H15/212	F24H15/212		744
F24H15/215	10	before heating	F24H15/215	F24H15/215		1102
F24H15/219	10	after heating	F24H15/219	F24H15/219		2007
F24H15/223	10	in the water storage tank	F24H15/223	F24H15/223		1378
F24H15/225	11	at different heights of the tank	F24H15/225	F24H15/225		508
F24H15/227	9	Temperature of the refrigerant in heat pump cycles	F24H15/227	F24H15/227		84
F24H15/231	10	at the evaporator	F24H15/231	F24H15/231		68
F24H15/232	10	at the condenser	F24H15/232	F24H15/232		49
F24H15/235	9	Temperature of exhaust gases	F24H15/235	F24H15/235		152
F24H15/238	9	Flow rate	F24H15/238	F24H15/238		1465
F24H15/242	9	Pressure	F24H15/242	F24H15/242		713
F24H15/246	9	Water level	F24H15/246	F24H15/246		203
F24H15/248	10	of water storage tanks	F24H15/248	F24H15/248		310
F24H15/25	9	Temperature of the heat-generating means in the heater	F24H15/25	F24H15/25		345
F24H15/254	9	Room temperature	F24H15/254	F24H15/254		848
F24H15/258	9	Outdoor temperature	F24H15/258	F24H15/258		520
F24H15/262	9	Weather information or forecast	F24H15/262	F24H15/262		140
F24H15/265	9	Occupancy	F24H15/265	F24H15/265		142
F24H15/269	9	Time, e.g. hour or date	F24H15/269	F24H15/269		520
F24H15/273	9	Address or location	F24H15/273	F24H15/273		31
F24H15/277	9	Price	F24H15/277	F24H15/277		80
F24H15/281	9	Input from user	F24H15/281	F24H15/281		1099
F24H15/288	9	Accumulation of deposits, e.g. lime or scale	F24H15/288	F24H15/288		78
F24H15/292	9	Metering of electricity sold to the grid	F24H15/292	F24H15/292		15
F24H15/296	9	Information from neighbouring devices	F24H15/296	F24H15/296		67
F24H15/30	8	characterised by control outputs; characterised by the components to be controlled	F24H15/30	F24H15/30		57
F24H15/305	9	Control of valves (of heat pumps F24H15/385, F24H15/39)	F24H15/305	F24H15/305		934
F24H15/31	10	of valves having only one inlet port and one outlet port, e.g. flow rate regulating valves	F24H15/31	F24H15/31		1403
F24H15/315	10	of mixing valves	F24H15/315	F24H15/315		253
F24H15/32	10	of switching valves (for by-passing F24H15/325)	F24H15/32	F24H15/32		240
F24H15/325	10	of by-pass valves	F24H15/325	F24H15/325		181
F24H15/33	9	Control of dampers	F24H15/33	F24H15/33		201
F24H15/335	9	Control of pumps, e.g. on-off control (control of compressors of heat pumps F24H15/38)	F24H15/335	F24H15/335		906
F24H15/34	10	Control of the speed of pumps	F24H15/34	F24H15/34		280
F24H15/345	9	Control of fans, e.g. on-off control (control of fans of heat pump units F24H15/375)	F24H15/345	F24H15/345		421
F24H15/35	10	Control of the speed of fans	F24H15/35	F24H15/35		458
F24H15/355	9	Control of heat-generating means in heaters	F24H15/355	F24H15/355		366
F24H15/36	10	of burners	F24H15/36	F24H15/36		1517
F24H15/365	11	of two or more burners, e.g. an array of burners	F24H15/365	F24H15/365		76
F24H15/37	10	of electric heaters	F24H15/37	F24H15/37		2654
F24H15/375	9	Control of heat pumps	F24H15/375	F24H15/375		551
F24H15/38	10	Control of compressors of heat pumps	F24H15/38	F24H15/38		497
F24H15/385	10	Control of expansion valves of heat pumps	F24H15/385	F24H15/385		182
F24H15/39	10	Control of valves for distributing refrigerant to different evaporators or condensers in heat pumps	F24H15/39	F24H15/39		71
F24H15/395	9	Information to users, e.g. alarms	F24H15/395	F24H15/395		1631
F24H15/40	8	characterised by the type of controllers	F24H15/40	F24H15/40		31
F24H15/407	9	using electrical switching, e.g. TRIAC	F24H15/407	F24H15/407		542
F24H15/414	9	using electronic processing, e.g. computer-based	F24H15/414	F24H15/414		1030
F24H15/421	10	using pre-stored data	F24H15/421	F24H15/421		1602
F24H15/429	11	for selecting operation modes	F24H15/429	F24H15/429		553
F24H15/436	11	for selecting sleeping modes	F24H15/436	F24H15/436		10
F24H15/443	10	using a central controller connected to several sub-controllers	F24H15/443	F24H15/443		163
F24H15/45	10	remotely accessible	F24H15/45	F24H15/45		611
F24H15/457	11	using telephone networks or Internet communication	F24H15/457	F24H15/457		177
F24H15/464	11	using local wireless communication	F24H15/464	F24H15/464		211
F24H15/479	11	for programming the system	F24H15/479	F24H15/479		25
F24H15/486	9	using timers	F24H15/486	F24H15/486		919
F24H15/493	9	specially adapted for enabling recognition of parts newly installed in the fluid heating system, e.g. for retrofitting or for repairing by replacing parts	F24H15/493	F24H15/493		24
F24H2210/00	7	Burner and heat exchanger are integrated	CPCONLY	F24H2210/00		64
F24H2220/00	7	Measures for environmentally correct disposal	CPCONLY	F24H2220/00		25
F24H2230/00	7	Solid fuel fired boiler	CPCONLY	F24H2230/00		1664
F24H2230/02	8	Solid and fluid fuel fired boilers	CPCONLY	F24H2230/02		125
F24H2240/00	7	Fluid heaters having electrical generators	CPCONLY	F24H2240/00		54
F24H2240/01	8	Batteries, electrical energy storage device	CPCONLY	F24H2240/01		171
F24H2240/02	8	with combustion engines	CPCONLY	F24H2240/02		18
F24H2240/04	9	External combustion engines	CPCONLY	F24H2240/04		5
F24H2240/06	9	Internal combustion engines	CPCONLY	F24H2240/06		23
F24H2240/08	8	with peltier elements	CPCONLY	F24H2240/08		85
F24H2240/09	8	with photovoltaic cells	CPCONLY	F24H2240/09		104
F24H2240/10	8	with fuel cells	CPCONLY	F24H2240/10		37
F24H2240/12	8	with thermodynamic cycle for converting thermal energy to mechanical power to produce electrical energy	CPCONLY	F24H2240/12		17
F24H2240/122	9	Stirling cycles	CPCONLY	F24H2240/122		11
F24H2240/125	9	Carnot cycles	CPCONLY	F24H2240/125		1
F24H2240/127	9	Rankine cycles, e.g. steam heat engines	CPCONLY	F24H2240/127		9
F24H2250/00	7	Electrical heat generating means	CPCONLY	F24H2250/00		207
F24H2250/02	8	Resistances	CPCONLY	F24H2250/02		2361
F24H2250/04	8	Positive temperature coefficients [PTC]; Negative temperature coefficients [NTC]	CPCONLY	F24H2250/04		499
F24H2250/06	8	Peltier	CPCONLY	F24H2250/06		93
F24H2250/08	8	Induction	CPCONLY	F24H2250/08		621
F24H2250/10	8	Electrodes	CPCONLY	F24H2250/10		192
F24H2250/12	8	Microwaves	CPCONLY	F24H2250/12		110
F24H2250/14	8	Lamps	CPCONLY	F24H2250/14		140
