Patents-Review.com
ClassID:

158585 ⎘

F24H1/205 - CPC Classification

Classification description:

Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters; Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes with furnace tubes

Sub-classes:
Recent Application in this class:
#1
20260055927
2026-02-26

Heater Exchanger for Water Heaters

 #2
20240175605
2024-05-30

Method and System for Controlling an Intermittent Pilot Water Heater System

 #3
20220397303
2022-12-15

Hybrid tank and tankless water heating system

 #4
20220307725
2022-09-29

GAS COMBUSTOR

 #5
20220260326
2022-08-18

HEAT EXCHANGER BAFFLES AND METHODS FOR MANUFACTURING THE SAME

 #6
20220228773
2022-07-21

Liquid heating and storage apparatus

 #7
20220187065
2022-06-16

Water heater, and scale detection system and method

 #8
20220163235
2022-05-26

HEAT EXCHANGER HAVING CIRCULATION GUIDE

 #9
20220146149
2022-05-12

Method and system for controlling an intermittent pilot water heater system

 #10
20220099337
2022-03-31

Water heater blower assembly having a low exhaust port

 #11
20220074602
2022-03-10

Heat distribution device

 #12
20210356173
2021-11-18

SYSTEM AND METHOD FOR CONTROLLING GAS CONSUMPTION BY GAS-FIRED WATER HEATERS

 #13
20210356169
2021-11-18

HEAT EXCHANGER FOR WATER HEATER

 #14
20210285456
2021-09-16

Draft inducer blower

 #15
20210239360
2021-08-05

Vent attachment for a tankless water heater

 #16
20210156592
2021-05-27

HIGH-EFFICIENCY CONDENSING WATER HEATER

 #17
20200363098
2020-11-19

Boiler heating system

 #18
20200300507
2020-09-24

Digital gas valve burner control systems and methods

 #19
20200284429
2020-09-10

Blower assembly for gas-burning appliance

 #20
20200232679
2020-07-23

Heat balancing system

 #21
20200191438
2020-06-18

Combustion tube assembly of a water heater

 #22
20200191437
2020-06-18

Combustion tube assembly of a water heater

 #23
20200158376
2020-05-21

C-shaped heat exchanger tube and nested bundle of C-shaped heat exchanger tubes

 #24
20200124293
2020-04-23

Heat pump boiler

 #25
20200096231
2020-03-26

COMBUSTION APPARATUS

 #26
20200088444
2020-03-19

SYSTEM AND METHOD FOR CONTROLLING GAS CONSUMPTION BY GAS-FIRED WATER HEATERS

 #27
20200033025
2020-01-30

COMBUSTION APPARATUS AND HOT WATER APPARATUS

 #28
20190376725
2019-12-12

Heat exchanger including flue flow path guide system

 #29
20190353400
2019-11-21

Water heater blower assembly having a low exhaust port

 #30
20190338987
2019-11-07

Method and system for controlling an intermittent pilot water heater system

 #31
20190203974
2019-07-04

Water heater with top water outlet

 #32
20190162444
2019-05-30

Hot water storage boiler having scale prevention function

 #33
20190162442
2019-05-30

Reduced size fire tube boiler system and method of operating same

 #34
20190154044
2019-05-23

Draft inducer blower

 #35
20190126179
2019-05-02

Filter device and water heater

 #36
20190093922
2019-03-28

BOILER

 #37
20190041092
2019-02-07

Water heater

 #38
20190017753
2019-01-17

Heat exchanger tube

 #39
20190003739
2019-01-03

Heat exchanger tube, heat exchange unit, heat exchange apparatus, hot water supply system, and method of manufacturing heat exchanger tube

 #40
20180372374
2018-12-27

Gas feed tube assembly for a water heater

 #41
20180356126
2018-12-13

High efficiency gas-fired water heater

 #42
20180292110
2018-10-11

High-efficiency condensing water heater

 #43
20180266726
2018-09-20

Fire Tube Heater

 #44
20180224156
2018-08-09

Condensing water heater and condensation control system

 #45
20180149389
2018-05-31

Heat trap

 #46
20180135884
2018-05-17

Fluid heater with perforated flame holder, and method of operation

 #47
20180128514
2018-05-10

System and method of controlling a water heater having a powered anode

 #48
20180094832
2018-04-05

Boiler system

 #49
20180030997
2018-02-01

Cover assembly, blower assembly and associated method

 #50
20170363324
2017-12-21

Water heater blower assembly having a low exhaust port

 #51
20170363323
2017-12-21

Water heater blower assembly having a low exhaust port

 #52
20170363322
2017-12-21

Water heater blower assembly having a low exhaust port

 #53
20170356646
2017-12-14

Water heater venting assembly

 #54
20170336099
2017-11-23

Combustion control system of gas water heater or wall-hanging boiler and control method thereof

 #55
20170321928
2017-11-09

Dielectrically insulated secondary flue for gas-fired water heater

 #56
20170307253
2017-10-26

Cyclonic inlet air filter and fluid heating systems and combustion burners having the same

 #57
20170167754
2017-06-15

Water stratification drum for water heater

 #58
20170108241
2017-04-20

Motor/damper assembly for fuel-fired water heater

 #59
20170102166
2017-04-13

System and method to reduce standby energy loss in a gas burning appliance and components for use therewith

 #60
20170059206
2017-03-02

Dual/multi energy gas water heater

 #61
20170023276
2017-01-26

Heat exchanger tube and heating boiler having such a heat exchanger tube

 #62
20170010019
2017-01-12

Method for low NOx fire tube boiler

 #63
20160370030
2016-12-22

REDUCED SIZE FIRE TUBE BOILER SYSTEM AND METHOD OF OPERATING SAME

 #64
20160348945
2016-12-01

Gas flow controller including valve decoupling mechanism

 #65
20160273799
2016-09-22

Gas heating device

 #66
20160216003
2016-07-28

Increased Efficiency Heating System Method and Apparatus for Concrete Production

 #67
20160201944
2016-07-14

Heat transfer baffle arrangement for fuel-burning water heater

 #68
20160138827
2016-05-19

Condensing water heater with dielectrically insulated secondary flue

 #69
20160097561
2016-04-07

Mobile water heating apparatus

 #70
20160025380
2016-01-28

Fluid heater with a variable-output burner including a perforated flame holder and method of operation

 #71
20160025374
2016-01-28

Fluid heater with perforated flame holder

 #72
20150369516
2015-12-24

Facility for producing a hot liquid, in particular hot water

 #73
20150323222
2015-11-12

Heat Exchanger Device and System Technologies

 #74
20150241087
2015-08-27

Gas-fired water heater with separable heat exchanger or detachably connected external water heater

 #75
20150220091
2015-08-06

Systems and methods for controlling water heaters

 #76
20150144075
2015-05-28

Water heater having a down fired combustion assembly

 #77
20150053152
2015-02-26

BOILER WITH INTEGRATED ECONOMIZER

 #78
20140261240
2014-09-18

Water Heater System Having Venturi Draw System

 #79
20140261239
2014-09-18

Water heater having upstream and downstream manifolds

 #80
20140250670
2014-09-11

Membrane seal for water heater tank spuds

 #81
20140224191
2014-08-14

Burner tube heat exchanger for a storage tank

 #82
20140112647
2014-04-24

Solar photovoltaic water heating system utilizing microprocessor control and water heater retrofit adaptor

 #83
20140053792
2014-02-27

Fluidized bed heat exchange apparatus for recovering heat of flue gas for producing high temperature water

 #84
20130266300
2013-10-10

Renewable energy hot water heating elements

 #85
20130059257
2013-03-07

Burner

 #86
20130042635
2013-02-21

HEAT PUMP WATER HEATER IN CONJUNCTION WITH GAS WATER HEATER

 #87
20130040252
2013-02-14

Apparatus for indicating level of pilot flame output

 #88
20130025546
2013-01-31

Combustion apparatus

 #89
20130019816
2013-01-24

FUEL-FIRED WATER HEATER WITH AIR DRAFT INDUCER AND FLUE HEAT EXCHANGER

 #90
20120222631
2012-09-06

Gas-fired water heater with separable heat exchanger or detachably connected external water heater

 #91
20120192812
2012-08-02

WATER HEATER WITH COUNTER-TWISTED BAFFLE

 #92
20120180737
2012-07-19

Gas-fired water heater with an exhaust assembly

 #93
20120174878
2012-07-12

GAS-FIRED WATER HEATER WITH AN EXHAUST ASSEMBLY

 #94
20120128337
2012-05-24

Water heater tank with convex heads

 #95
20120103279
2012-05-03

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

 #96
20120090562
2012-04-19

Storeage gas water heater

 #97
20120090559
2012-04-19

Economically-operated, dual-energy hot water supply system and method of operating the same

 #98
20120048214
2012-03-01

Motor/damper assembly for fuel-fired water heater

 #99
20110308481
2011-12-22

WATER HEATER BLOWER HOUSING

 #100
20110277706
2011-11-17

GAS-FIRED HEATING DEVICE HAVING A THERMOPILE

 #101
20110247572
2011-10-13

WATER HEATER INCLUDING A DIP TUBE

 #102
20110168284
2011-07-14

System and method to reduce standby energy loss in a gas burning appliance and components for use therewith

 #103
20110083618
2011-04-14

Burner

 #104
20110048340
2011-03-03

Heat balancing system

 #105
20100281899
2010-11-11

Gas-fired heat pump water heater

 #106
20100269345
2010-10-28

MEMBRANE SEAL FOR WATER HEATER TANK SPUDS

 #107
20100251973
2010-10-07

Fluid heating system

 #108
20100242862
2010-09-30

Steam Box Having An Energy-Saving Function

 #109
20100236649
2010-09-23

Adaptor for hot water storage tank and method of use thereof

 #110
20100192873
2010-08-05

Burner Flashback Detection and System Shutdown Apparatus

 #111
20100180836
2010-07-22

FLUID STORAGE CONTAINERS WITH BAFFLES

 #112
20100154723
2010-06-24

ULTRA LOW NOx WATER HEATER

 #113
20100116227
2010-05-13

Systems and methods for controlling a water heater

 #114
20100101510
2010-04-29

WATER HEATERS WITH SEALED DOOR ASSEMBLY

 #115
20100101509
2010-04-29

WATER HEATERS WITH SEALED DOOR ASSEMBLIES

 #116
20100043728
2010-02-25

Water heater

 #117
20100012048
2010-01-21

System and method to reduce standby energy loss in a gas burning appliance

 #118
20090308333
2009-12-17

Removable heat exchanger for a gas fired water heater

 #119
20090308332
2009-12-17

WATER HEATER WITH FORCED DRAFT AIR INLET

 #120
20090301406
2009-12-10

Condensing water heater

 #121
20090255487
2009-10-15

Water heater sealed combustion chamber assembly

 #122
20090250017
2009-10-08

WATER HEATER WITH PRESSURIZED COMBUSTION

 #123
20090241858
2009-10-01

WATER HEATER WITH HIGH EFFICIENCY BAFFLES

 #124
20090235875
2009-09-24

Condensation draining system for condensing water heaters

 #125
20090223655
2009-09-10

Heat exchanger particularly for thermal generators

 #126
20090211540
2009-08-27

Fuel-fired, power vented high efficiency water heater apparatus

 #127
20090151655
2009-06-18

HEAT TUBE ASSEMBLY

 #128
20090142720
2009-06-04

Water Heater and a Method of Operating Same

 #129
20090095234
2009-04-16

Water heater and system for insulating same

 #130
20090084328
2009-04-02

WATER HEATERS WITH COMBUSTION AIR INLET

 #131
20080264356
2008-10-30

Water heater

 #132
20080251035
2008-10-16

Burner flashback detection and system shutdown apparatus

 #133
20080216772
2008-09-11

High efficiency water heater

 #134
20080188995
2008-08-07

Water heater monitor/diagnostic display apparatus

 #135
20080182216
2008-07-31

Burner

 #136
20080173259
2008-07-24

High efficiency water heater

 #137
20080085106
2008-04-10

Two-stage water heater assembly

 #138
20080078337
2008-04-03

Systems and methods for controlling a water heater

 #139
20080011245
2008-01-17

Control for a fuel-fired water heating appliance having variable heating rates

 #140
20070261241
2007-11-15

Method of manufacturing a water heater with a leak detection system

 #141
20070237501
2007-10-11

Water heater for recreational vehicles having forced air/direct vent combustion

 #142
20070221142
2007-09-27

Ultra low NOx water heater

 #143
20070215067
2007-09-20

Water heater with flammable vapor sensor

 #144
20070215066
2007-09-20

Water heater with flammable vapor and co sensors

 #145
20070209605
2007-09-13

Modular control and heater assembly

 #146
20070186872
2007-08-16

Low CO water heater

 #147
20070163119
2007-07-19

Method of manufacturing a combustion chamber for a water heater

 #148
20070151092
2007-07-05

Method of manufacturing a combustion chamber for a water heater

 #149
20070144453
2007-06-28

Water heater combustion chamber sensing system

 #150
20070079771
2007-04-12

Water heater with air intake and exhaust system

 #151
20070062463
2007-03-22

Fuel-fired dual tank water heater having dual pass condensing type heat exchanger

 #152
20070034170
2007-02-15

Water heater with convoluted flue tube

 #153
20060237006
2006-10-26

Water heater with noise attenuation

 #154
20060207524
2006-09-21

Water heater with cross-sectionally elongated raw fuel jet pilot orifice

 #155
20060191497
2006-08-31

Water heater with air intake and exhaust system

 #156
20060185620
2006-08-24

Condensation removal for use with a draft inducer

 #157
20060174846
2006-08-10

System and methods for controlling a water heater

 #158
20060157092
2006-07-20

Warewasher water heating system with immersion tube and associated turbulator

 #159
20060150927
2006-07-13

Dual function high efficiency water heater

 #160
20060150925
2006-07-13

Water heater with pressurized combustion

 #161
20060102733
2006-05-18

Combustion air intake filter

 #162
20060081198
2006-04-20

Water heater with air intake and exhaust system

 #163
20060070618
2006-04-06

Gas water heater damper/baffle

 #164
20060070585
2006-04-06

Low NOx water heater with serpentined air entry

 #165
20060065211
2006-03-30

Blower and method of conveying fluids

 #166
20060048724
2006-03-09

Water heater having raw fuel jet pilot and associated burner clogging detection apparatus

 #167
20060042564
2006-03-02

Gas-fired water heating apparatus

 #168
20050229870
2005-10-20

Method of manufacturing a combustion chamber for a water heater

 #169
20050217612
2005-10-06

Water heater

 #170
20050202358
2005-09-15

Apparatus and method for shutting down fuel fired appliance

 #171
20050172915
2005-08-11

Burner

 #172
20050092262
2005-05-05

Secondary burner for sealed combustion chamber of a gas-fired hot water heater

 #173
20050077368
2005-04-14

Temperature sensor diagnostic for determining water heater health status

 #174
20050066958
2005-03-31

Water heater with mechanical damper

 #175
20050066913
2005-03-31

Combustion chamber with high temperature protective coating

 #176
14137988
2018-07-17

Heat exchanger