ClassID:

157805

F24D3/08 - CPC Classification

Classification description:

Hot-water central heating systems in combination with systems for domestic hot-water supply

Sub-classes:
Recent Application in this class:
#1
20260022844
2026-01-22

SPACE HEATING SYSTEM

#2
20260022841
2026-01-22

SPACE HEATING SYSTEM

#3
20250354722
2025-11-20

SYSTEM AND METHOD FOR DETERMINING HEAT TRANSFER CAPACITY OF AN INDIRECT WATER HEATER

#4
20250341318
2025-11-06

COMBINED SUPPLY SYSTEM, AND CONTROLLER AND CONTROL METHOD THEREFOR

#5
20250321024
2025-10-16

SYSTEM AND METHOD FOR DETERMINING HEAT DEMAND OF A HYDRONIC HEATING SYSTEM

#6
20250297771
2025-09-25

ELECTRIC FLUID HEATER

#7
20250244025
2025-07-31

HYDRO-FURNACE

#8
20250237392
2025-07-24

SOLAR THERMAL COMBINED HEATING, COOLING, AND POWER SYSTEM AND ASSOCIATED CONTROL METHODS

#9
20250216091
2025-07-03

VALVE AND METHOD OF OPERATING BOILER USING THE SAME

#10
20250198633
2025-06-19

BUILDING HEATING SYSTEM

#11
20250198632
2025-06-19

METHOD FOR RENEWING A BUILDING HEATING SYSTEM OF A BUILDING, AND RENEWED BUILDING HEATING SYSTEM

#12
20250172298
2025-05-29

STRATIFICATION STORAGE WATER HEATER

#13
20250146708
2025-05-08

STEAM OR WATER BOILER THAT CAN OPERATE ON GAS/OIL OR ELECTRICITY

#14
20250123006
2025-04-17

HEATING SYSTEM AND METHOD OF CONTROLLING THE SAME

#15
20250116436
2025-04-10

MULTI-ENERGY COUPLED COOLING/HEATING SYSTEM FOR BUILDINGS IN LONG-TERM COOLING REGION AND OPERATION METHOD

#16
20250075920
2025-03-06

BOILER, BOILER ASSEMBLY, AND WATER HEATING SYSTEM

#17
20250035320
2025-01-30

WATER HEATING SYSTEM AND A CONTROLLER THEREFOR

#18
20240337415
2024-10-10

Electric fluid heater

#19
20240328632
2024-10-03

SYSTEM AND METHOD FOR PROVIDING DOMESTIC HOT WATER AND/OR SPACE HEATING WITHIN A BUILDING, AND A REMOVABLE COVER OF A STORAGE VESSEL

#20
20240271798
2024-08-15

HEATING APPARATUS

#21
20240125484
2024-04-18

SYSTEM FOR PRODUCING HEAT FOR DOMESTIC HOT WATER OR CENTRAL HEATING

#22
20230375193
2023-11-23

HOT-WATER SUPPLY AND HEATING SYSTEM

#23
20230358440
2023-11-09

BOILER FOR MAKING HOT WATER AND ROOM HEATING WATER AVAILABLE SIMULTANEOUSLY

#24
20230288075
2023-09-14

IMPROVED CONTROL SYSTEM FOR HYDRONIC HEATER AND METHOD OF OPERATING SAME

#25
20230167826
2023-06-01

Centrifugal pump assembly

#26
20220196291
2022-06-23

DETERMINATION OF A MODE OF OPERATION OF A BOILER

#27
20220178555
2022-06-09

Heated water availability control

#28
20220003431
2022-01-06

Heating and hot-water supply device

#29
20210372631
2021-12-02

Heating and hot-water supply apparatus

#30
20210302032
2021-09-30

Equipment determination method of cogeneration system, equipment determination device thereof, and computer readable recording medium thereof

#31
20210293452
2021-09-23

Wall mounted, concealed, water-to-water, water source heat pump with domestic hot water heat exchanger and storage tank

#32
20210278093
2021-09-09

Control systems and methods for managing rate of heat delivery in hydronic systems

#33
20210247076
2021-08-12

Water preconditioner system

#34
20210239370
2021-08-05

Heat pump and method for controlling compressor based on operation of boiler

#35
20210190329
2021-06-24

HOT WATER HEATING SYSTEM

#36
20210123610
2021-04-29

Methods and system for controlling a combination boiler

#37
20210123609
2021-04-29

HEATING GROUP

#38
20210123608
2021-04-29

METHOD FOR THERMAL ENERGY TRANSMISSION USING WATER AND CARBON DIOXIDE

#39
20210123606
2021-04-29

HEATING AND HOT WATER SUPPLY SYSTEM

#40
20210116135
2021-04-22

On-demand tankless high volume capable water heating system

#41
20210095866
2021-04-01

Heated water recirculation control

#42
20210088224
2021-03-25

Heating and hot water supply system

#43
20210080120
2021-03-18

Heating and hot water supply device

#44
20210033287
2021-02-04

Heated water availability control

#45
20200386418
2020-12-10

Hot water supplying apparatus and method for utilizing waste heat of hot water supplying apparatus

#46
20200309383
2020-10-01

Heating and hot-water supply apparatus

#47
20200309382
2020-10-01

Hot-water supply apparatus

#48
20200292179
2020-09-17

Heating and hot-water supply apparatus

#49
20200263880
2020-08-20

Hydraulic system for an installation for heating and generating domestic hot water

#50
20200224888
2020-07-16

Installation of combined heat and power systems

#51
20200200401
2020-06-25

Methods and system for demand-based control of a combination boiler

#52
20200191412
2020-06-18

BOILER SYSTEM FOR BOTH HEATING AND HOT WATER

#53
20200158586
2020-05-21

Device and methodology for early detection of fluid loss and notification and system shutdown for a closed loop fluid heat transfer system

#54
20200158334
2020-05-21

MATERIALS RECYCLING APPARATUS

#55
20200103927
2020-04-02

Hot water supply system, server and non-transitory computer readable recording medium

#56
20200049426
2020-02-13

Flue Gas Energy Recovery System and Method

#57
20200021457
2020-01-16

Communication adapter

#58
20190346153
2019-11-14

Heating and hot water supplying device

#59
20190338961
2019-11-07

Thermostatic device and sanitary water supply and/or dispensing system comprising such a thermostatic device

#60
20190234653
2019-08-01

HEATING AND HOT WATER SUPPLY DEVICE

#61
20190154304
2019-05-23

Heating and hot water supply device

#62
20190154303
2019-05-23

Heating and hot water supply device

#63
20180372343
2018-12-27

Water heating system including multi-function heat source apparatus

#64
20180372337
2018-12-27

Cogeneration systems and methods for generating heating and electricity

#65
20180372334
2018-12-27

Cogeneration systems and methods for generating heating and electricity

#66
20180372333
2018-12-27

Cogeneration systems and methods for generating heating and electricity

#67
20180347846
2018-12-06

Air conditioning apparatus

#68
20180340854
2018-11-29

Device and methodology for early detection of fluid loss and notification and system shutdown for a closed loop fluid heat transfer system

#69
20180238639
2018-08-23

Heat exchanger

#70
20180195762
2018-07-12

Wall mounted, concealed, water-to-water, water source heat pump with domestic hot water heat exchanger and storage tank

#71
20180172287
2018-06-21

Heating installation

#72
20180156511
2018-06-07

Temperature-adjusting fluid supply apparatus

#73
20180156474
2018-06-07

Heating installation

#74
20180128499
2018-05-10

Zoned radiant heating system and method

#75
20180073749
2018-03-15

Methods and system for controlling a combination boiler

#76
20180073748
2018-03-15

Methods and system for demand-based control of a combination boiler

#77
20180051894
2018-02-22

Heat-pump equipment

#78
20170370622
2017-12-28

Two-stage heating geothermal system using geothermal energy

#79
20170370324
2017-12-28

Waste heat recovery device, heat supply system, and operation method for waste heat recovery device

#80
20170356449
2017-12-14

Hydraulic system

#81
20170336081
2017-11-23

Hydraulic system

#82
20170336080
2017-11-23

Combined heating system capable of bi-directional heating

#83
20170248373
2017-08-31

Plate heat exchanger and heat pump outdoor unit

#84
20170248325
2017-08-31

Multi-temperature output fluid heating system

#85
20170184314
2017-06-29

HEAT PUMP HEATING SYSTEM

#86
20170130997
2017-05-11

HEAT PUMP SYSTEM

#87
20170030593
2017-02-02

Modular track wiring assembly for a hydronic system

#88
20170023263
2017-01-26

Heating and hot water supply system

#89
20160326440
2016-11-10

Disposal of refuse

#90
20160320075
2016-11-03

Combined space conditioning or heating and water heating system

#91
20160211534
2016-07-21

Cooling and heating device

#92
20160178219
2016-06-23

Combined hot water and space heating and conditioning system including heat pump

#93
20160017760
2016-01-21

Cogenerating system

#94
20150354831
2015-12-10

Combined heating system capable of bi-directional heating

#95
20150300661
2015-10-22

Hot water-centered combined hot water and heating boiler

#96
20150292810
2015-10-15

Thermal energy storage system comprising a combined heating and cooling machine and a method for using the thermal energy storage system

#97
20150292809
2015-10-15

Method for operating an arrangement for storing thermal energy

#98
20150285560
2015-10-08

Plate heat exchanger plate for a plate heat exchanger and a plate heat exchanger comprising such plates

#99
20150276266
2015-10-01

Facilitating radio frequency communications among environmental control system components

#100
20150204550
2015-07-23

Multi-temperature output fluid heating system

#101
20150113987
2015-04-30

Integrated renewable energy and asset system

#102
20150075214
2015-03-19

Liquefier for a heat pump and heat pump

#103
20150053198
2015-02-26

Methods and apparatus for heating air with hot water

#104
20150014425
2015-01-15

Heating unit

#105
20140303787
2014-10-09

Heating system and method for heating a building and/or for preparing hot water

#106
20140230805
2014-08-21

Gas hot water heating device and system

#107
20140137591
2014-05-22

Domestic hot water delivery system

#108
20140013653
2014-01-16

Thermal processing device, system, and method

#109
20140000308
2014-01-02

Refrigerant circuit

#110
20130248609
2013-09-26

Heating system and method for controlling a heating system

#111
20130219945
2013-08-29

Combined hot water supply and air-conditioning device

#112
20130219894
2013-08-29

Heating system—modular

#113
20130205824
2013-08-15

Heat pump device

#114
20130186967
2013-07-25

Methods and apparatus for heating air with hot water

#115
20130074827
2013-03-28

Solar thermal system

#116
20130047654
2013-02-28

HEAT PUMP HOT WATER APPARATUS

#117
20120186278
2012-07-26

Hot water storage type hot water supply system and operation method of the same

#118
20120180736
2012-07-19

POTABLE WATER HEATER

#119
20120118556
2012-05-17

Control device for a heating system and heating system

#120
20120103280
2012-05-03

VARIABLE FLOW HEATING SYSTEM WITH HEATING ACCESSORIES PLACED IN SERIES

#121
20120091214
2012-04-19

Controller for recreational-vehicle heating system

#122
20120090341
2012-04-19

Water heater and control method therefor

#123
20120055177
2012-03-08

Air conditioner and control method thereof

#124
20120043390
2012-02-23

Heat pump

#125
20120042673
2012-02-23

HEAT PUMP

#126
20120037150
2012-02-16

Solar lens water heating system

#127
20120000236
2012-01-05

HEAT PUMP HEATING SYSTEM

#128
20110308767
2011-12-22

Housing unit for a heating system

#129
20110302949
2011-12-15

Heat pump system

#130
20110302948
2011-12-15

Heat pump system

#131
20110296861
2011-12-08

Heat pump system

#132
20110289950
2011-12-01

Hot water supply apparatus associated with heat pump

#133
20110259025
2011-10-27

HEAT PUMP TYPE SPEED HEATING APPARATUS

#134
20110218683
2011-09-08

Hybrid heating system

#135
20110174463
2011-07-21

Water Heating System

#136
20110135515
2011-06-09

Circulating pump unit with communication interface

#137
20110120179
2011-05-26

HEAT PUMP TYPE COOLING/HEATING APPARATUS

#138
20110107789
2011-05-12

Liquefier for a heat pump and heat pump

#139
20110083462
2011-04-14

DEVICE FOR OBTAINING HEAT

#140
20110073666
2011-03-31

BOILER SYSTEM HAVING DUAL HEATING WATER TANKS

#141
20110017152
2011-01-27

BOILER FOR SUPPLYING HEATING WATER AND HOT WATER SIMULTANEOUSLY

#142
20110005253
2011-01-13

Absorption heat pump with a thermally insulating dividing wall

#143
20100282440
2010-11-11

Fluid Heater

#144
20100229583
2010-09-16

Refrigeration cycle apparatus

#145
20100111508
2010-05-06

Mixed energy heater with constant temperature control

#146
20100051713
2010-03-04

Hot water circulation system associated with heat pump and method for controlling the same

#147
20100025488
2010-02-04

Hot water circulation system associated with heat pump

#148
20090320503
2009-12-31

Cogeneration system

#149
20090277203
2009-11-12

Device for heating, cooling and producing domestic hot water using a heat pump and low-temperature heat store

#150
20090223658
2009-09-10

Heating system

#151
20090223509
2009-09-10

Water-heating system

#152
20090173336
2009-07-09

ACTIVE THERMAL ENERGY STORAGE SYSTEM AND TANK FOR USE THEREIN

#153
20090145149
2009-06-11

Hot water supply and air conditioning system using COheat pump

#154
20090101305
2009-04-23

Combined potable water-surface heating and cooling system

#155
20090090310
2009-04-09

Heating system

#156
20090078784
2009-03-26

Combined heating/hot water system for a vehicle

#157
20090071627
2009-03-19

SELF-REGULATED THERMAL ENERGY SYSTEM

#158
20090049857
2009-02-26

Heat pump system having auxiliary water heating and heat exchanger bypass

#159
20090007900
2009-01-08

Method for operating an active thermal energy storage system

#160
20080264490
2008-10-30

Methods and apparatus for heating air with hot water

#161
20080203179
2008-08-28

HOT WATER AND HEATING SYSTEM OPERATING ON THE BASIS OF RENEWABLE ENERGY CARRIERS

#162
20080196431
2008-08-21

Heating installation and heating method

#163
20080135636
2008-06-12

Heat-pump-type water heater

#164
20080105755
2008-05-08

High-thermal-mass hydronic furnace

#165
20080092875
2008-04-24

Active thermal energy storage system

#166
20080035746
2008-02-14

RADIANT HEATING SYSTEM AND METHOD OF CONTROL

#167
20070295826
2007-12-27

System for delivering warmed fluids

#168
20070246555
2007-10-25

Heat Conveyance System

#169
20070235022
2007-10-11

Passive back-flushing thermal energy system

#170
20070214816
2007-09-20

Heat-pump-type hot water supply apparatus

#171
20070205293
2007-09-06

Heated fluid distribution apparatus for combined domestic hot water supply and space heating system in closed loop

#172
20070205292
2007-09-06

Heated fluid distribution apparatus for combined domestic hot water supply and space heating system

#173
20070151559
2007-07-05

Low-pressure and low-temperature collection system of solar thermal energy

#174
20070147809
2007-06-28

Heating system for potable water and relatively small areas

#175
20070108307
2007-05-17

TEMPERATURE CONDITIONING RADIANT WALL SYSTEM FOR BUILDINGS

#176
20070079769
2007-04-12

HEATING AND HOT WATER SUPPLYING SYSTEM USING FUEL CELL

#177
20070028611
2007-02-08

Domestic combined heat and power assembly

#178
20060049184
2006-03-09

Microwave-based hydronics heating system

#179
20060016903
2006-01-26

Integrated fixture for transferring heat between higher and lower-temperature loops in a hydronic heating system

#180
20050284948
2005-12-29

Distribution module for water heater

#181
20050258263
2005-11-24

Potable water heater

#182
20050229871
2005-10-20

Heating system and boiler therefor

#183
20050161521
2005-07-28

System and method for hydronic space heating with electrical power generation

#184
20050098643
2005-05-12

System and method for warm air space heating with electrical power generation

#185
20050098301
2005-05-12

Passive back-flushing thermal energy system

#186
18606109
2025-03-18

Building heating system