ClassID:

158027

F24D2200/04 - CPC Classification

Classification description:

Heat sources or energy sources Gas or oil fired boiler

Sub-classes:
Recent Application in this class:
#1
20250271164
2025-08-28

HEAT PUMP AND AUXILIARY HEATING WITH CARBON REDUCTION RESET STRATEGY

#2
20250251142
2025-08-07

GAS-ELECTRIC HYBRID WATER HEATER

#3
20250123006
2025-04-17

HEATING SYSTEM AND METHOD OF CONTROLLING THE SAME

#4
20250116426
2025-04-10

APPARATUS AND METHODS FOR HEATING WATER WITH REFRIGERANT FROM AIR CONDITIONING SYSTEM

#5
20250075920
2025-03-06

BOILER, BOILER ASSEMBLY, AND WATER HEATING SYSTEM

#6
20250003604
2025-01-02

Multi-Tank Storage Type Gas Water Heater

#7
20240369261
2024-11-07

SPARK IGNITION MODULE AND METHODS

#8
20240263807
2024-08-08

NOISE ABATEMENT SYSTEMS AND METHODS FOR A FURNACE

#9
20240003551
2024-01-04

SYSTEMS AND METHODS FOR AUTOMATED POOL HEATING UNIT CONFIGURATIONS

#10
20230288075
2023-09-14

IMPROVED CONTROL SYSTEM FOR HYDRONIC HEATER AND METHOD OF OPERATING SAME

#11
20230160388
2023-05-25

Water Heating System and Valving for These

#12
20230134566
2023-05-04

Heat recovery apparatus and methods of increasing energy efficiency of hybrid heating systems using the apparatus

#13
20230003420
2023-01-05

SYSTEMS, APPARATUS, AND METHODS FOR REMOTE CONTROL OF A PLURALITY OF HEATING DEVICES

#14
20220373194
2022-11-24

Reactive Energy Storage for Instantaneous Hot Water Applications

#15
20220341601
2022-10-27

FURNACE MONITORING AND CONTROL BASED ON RATE OF FLUE GAS TEMPERATURE CHANGE

#16
20220252326
2022-08-11

Defrosting control method, central controller and heating system

#17
20220003431
2022-01-06

Heating and hot-water supply device

#18
20210325050
2021-10-21

Spark ignition module and methods

#19
20210262708
2021-08-26

Heat pump and method for controlling operation of boiler based on temperature of fluid

#20
20210254860
2021-08-19

ULTRA-LOW NOx BURNER

#21
20210123607
2021-04-29

THERMALLY ENHANCED HEATING

#22
20210108829
2021-04-15

Apparatus and methods for heating water with refrigerant from air conditioning system

#23
20210108804
2021-04-15

THERMODYNAMIC CO2 BOILER AND THERMAL COMPRESSOR

#24
20210033304
2021-02-04

Blow through direct fired heating, A/C and ERV

#25
20200386417
2020-12-10

Hot water supplying apparatus and method for controlling same

#26
20200263694
2020-08-20

Water Heating System and Valving for These

#27
20200224888
2020-07-16

Installation of combined heat and power systems

#28
20200200398
2020-06-25

Zone control with modulating boiler

#29
20200191412
2020-06-18

BOILER SYSTEM FOR BOTH HEATING AND HOT WATER

#30
20200056793
2020-02-20

HVAC MONITORING APPARATUS AND METHOD

#31
20200032405
2020-01-30

Electrolysis heating system

#32
20190257530
2019-08-22

ADVANCED WASTE HEAT RECOVERY IN INDUSTRIAL FIRED-HEATERS

#33
20190137139
2019-05-09

Air handling apparatus for HVAC systems

#34
20190107295
2019-04-11

Device and Method For Configuring a Multivalent Energy Supply Installation

#35
20180299166
2018-10-18

Blow through direct fired heating, A/C and ERV

#36
20180252434
2018-09-06

Apparatus and methods for heating water with refrigerant from air conditioning system

#37
20180252433
2018-09-06

Reduced drag combustion pass in a tubular heat exchanger

#38
20180245800
2018-08-30

METHOD AND APPARATUS FOR UTILIZATION OF HOT WATER PLANT WASTE HEAT RECOVERY BY INCORPORATED HIGH TEMPERATURE WATER SOURCE HEAT PUMP

#39
20180216834
2018-08-02

Manifold, a buffer tank comprising the manifold, and a method for operating a heat exchange system

#40
20180209666
2018-07-26

Heating system including a refrigerant boiler

#41
20180180299
2018-06-28

Automatic firing rate control for a heat exchanger

#42
20180156473
2018-06-07

Zone control with modulating boiler

#43
20180156220
2018-06-07

Water Heating System and Valving for These

#44
20180112785
2018-04-26

Water consuming appliance and a method for operating the same

#45
20180080663
2018-03-22

Boiler control system

#46
20170370324
2017-12-28

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

#47
20170234550
2017-08-17

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

#48
20170219219
2017-08-03

DEMAND BASED HVAC (HEATING, VENTILATION, AIR CONDITIONING) CONTROL

#49
20170211836
2017-07-27

Heating furnace using self-calibration mode

#50
20170211835
2017-07-27

Heating furnace using rapid response heat control mode

#51
20170211834
2017-07-27

Heating furnace using discharge air heating control mode

#52
20170211824
2017-07-27

Heating furnace using anti-stratification mode

#53
20170211823
2017-07-27

Heating furnace using auto heating commissioning mode

#54
20170122576
2017-05-04

Gas fired modular blower control and associated methodology

#55
20160341434
2016-11-24

Air conditioning system

#56
20160320093
2016-11-03

Apparatus and methods for pre-heating water with air conditioning unit or heat pump

#57
20160290656
2016-10-06

Dual fuel heating assembly with selector switch

#58
20160178219
2016-06-23

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

#59
20160084540
2016-03-24

Adsorptive heat transformation arrangement

#60
20160054008
2016-02-25

Water heater having a waterway changeover control apparatus and method for operating the same

#61
20160025381
2016-01-28

Translucent plastic solar thermal collector

#62
20150362213
2015-12-17

Blow through direct fired heating, A/C and ERV

#63
20150346740
2015-12-03

Smart water heater system, method and computer readable media

#64
20150345804
2015-12-03

Boiler control system

#65
20150338099
2015-11-26

Dual fuel heating assembly with reset switch

#66
20150220091
2015-08-06

Systems and methods for controlling water heaters

#67
20150219343
2015-08-06

Air conditioning system

#68
20150219342
2015-08-06

Air conditioning system

#69
20150192308
2015-07-09

Hyper-condensate recycler

#70
20150090803
2015-04-02

Air conditioning system

#71
20150075765
2015-03-19

Conditional system of climate control

#72
20150069756
2015-03-12

Combined power and heating station

#73
20140262134
2014-09-18

HVAC system remote monitoring and diagnosis

#74
20140260392
2014-09-18

Apparatus and methods for heating water with refrigerant from air conditioning system

#75
20140260358
2014-09-18

Apparatus and methods for pre-heating water with air conditioning unit or heat pump

#76
20140252100
2014-09-11

Gas fired modular blower control and associated methodology

#77
20140083648
2014-03-27

DEDICATED OUTDOOR AIR SYSTEM WITH PRE-HEATING AND METHOD FOR SAME

#78
20140020637
2014-01-23

Apparatus for using cast-off heat to warm water from household water heater

#79
20130177825
2013-07-11

Power generation system and method of operating the same

#80
20120282561
2012-11-08

HEATER AND ELECTRICAL GENERATOR SYSTEM AND RELATED METHODS

#81
20120256419
2012-10-11

Combination heater and electrical generator system and related methods

#82
20120248213
2012-10-04

Hyper-condensate recycler

#83
20120135321
2012-05-31

Boiler unit

#84
20120103279
2012-05-03

METHOD AND APPARATUS FOR DRAINING CONDENSATE FROM A GAS WATER HEATER EXHAUST SYSTEM

#85
20120090598
2012-04-19

Water heater having a waterway changeover control apparatus and method for operating the same

#86
20120061481
2012-03-15

DEVICE FOR PROVIDING REVERSE HEATING AND METHOD OF REVERSE HEATING

#87
20120060827
2012-03-15

CONTROL FOR A TANKLESS WATER HEATER USED WITH A SOLAR WATER HEATING SYSTEM

#88
20120029725
2012-02-02

SMART HYBRID THERMOSTAT

#89
20120012103
2012-01-19

HEATING SYSTEM

#90
20120012099
2012-01-19

Dual fuel heating system with pressure sensitive nozzle

#91
20120012097
2012-01-19

Heating system

#92
20120006091
2012-01-12

Heating system

#93
20110296838
2011-12-08

HEAT SOURCE MACHINE

#94
20110290228
2011-12-01

WARM AIR FURNACE

#95
20110254269
2011-10-20

High efficiency cogeneration system and related method of use

#96
20110218683
2011-09-08

Hybrid heating system

#97
20110211612
2011-09-01

TEMPERATURE SENSOR ARRAY AND METHOD OF ANALYZING A CONDITION OF WATER IN A TANK OF A WATER HEATING SYSTEM

#98
20110203576
2011-08-25

Heat generator group with jet pump flow circuit control

#99
20110174463
2011-07-21

Water Heating System

#100
20110107512
2011-05-12

Heat exchange devices

#101
20110101119
2011-05-05

HEATING SYSTEM PRODUCING ELECTRICITY

#102
20110082593
2011-04-07

System and method for controlling hydronic systems having multiple sources and multiple loads

#103
20110077781
2011-03-31

System and method for controlling hydronic systems having multiple sources and multiple loads

#104
20110058796
2011-03-10

WATER HEATER ARRANGEMENT

#105
20110048404
2011-03-03

HEATING SYSTEM

#106
20110005253
2011-01-13

Absorption heat pump with a thermally insulating dividing wall

#107
20100326641
2010-12-30

Heat exchange module for cogeneration systems and related method of use

#108
20100199975
2010-08-12

Solar thermal collector cabinet and system for heat storage

#109
20100090017
2010-04-15

Hybrid heating system and method

#110
20100077779
2010-04-01

AIR-SOURCE HEAT PUMP

#111
20100037889
2010-02-18

SOLAR HEATING SYSTEM WITH BACK-UP HEATING

#112
20100025489
2010-02-04

Fuel economizer improvements

#113
20090320503
2009-12-31

Cogeneration system

#114
20090301468
2009-12-10

Thermal Storage Tank for a Hot Water System and Controlling Method Thereof

#115
20090293862
2009-12-03

Solar thermal collector cabinet and system for heat storage

#116
20090287355
2009-11-19

System and method for controlling hydronic systems having multiple sources and multiple loads

#117
20090224062
2009-09-10

Increased efficiency heating system method and apparatus for concrete production

#118
20090223465
2009-09-10

Hot water storage type hot water supply device

#119
20090178662
2009-07-16

WATER HEATER GAS APPLIANCE

#120
20090159076
2009-06-25

SOLAR ENERGY SAVING SYSTEM USING GAS AND ELECTRICITY AS COMPENSATION

#121
20090151655
2009-06-18

HEAT TUBE ASSEMBLY

#122
20090139513
2009-06-04

Bivalent water heating system

#123
20090125150
2009-05-14

System and method for control of heat system operation by changing a switching set point of operation

#124
20090120923
2009-05-14

Water heater of endorsement with ionized ignition and electronic control of temperature, for solar heaters of the type thermosiphon

#125
20090050077
2009-02-26

Mutually convertible boiler between normal type and condensing type

#126
20090008465
2009-01-08

COMBINED HEATING/WARM WATER SYSTEM FOR MOBILE APPLICATIONS

#127
20080236561
2008-10-02

Combination gas-fired furnace and gas-powered electrical generator

#128
20080210177
2008-09-04

Dual fuel air conditioning circuit-based water heater

#129
20080196431
2008-08-21

Heating installation and heating method

#130
20080105755
2008-05-08

High-thermal-mass hydronic furnace

#131
20080054082
2008-03-06

Climate control system including responsive controllers

#132
20080023564
2008-01-31

Method And Apparatus For Centrally Controlling A Hybrid Furnace, Heater, And Boiler System Installation

#133
20070158048
2007-07-12

External flue heat exchangers

#134
20070079769
2007-04-12

HEATING AND HOT WATER SUPPLYING SYSTEM USING FUEL CELL

#135
20050235984
2005-10-27

Water heating apparatus

#136
20050154499
2005-07-14

Power distribution/generation system

#137
20050150650
2005-07-14

Heat pump control system and method of operating to provide automatic backup heating modes

#138
17193695
2024-10-22

System and method for heat and energy recovery and regeneration