ClassID:

158028

F24D2200/043 - CPC Classification

Classification description:

Heat sources or energy sources; Gas or oil fired boiler More than one gas or oil fired boiler

Recent Application in this class:
#1
20190285316
2019-09-19

Control system for modulating water heater

#2
20190055932
2019-02-21

Thermodynamic boiler with thermal compressor

#3
20180363925
2018-12-20

On-demand tankless high volume capable water heating system

#4
20180252418
2018-09-06

Water heating system

#5
20180135868
2018-05-17

Modulation control of hydronic systems

#6
20170336080
2017-11-23

Combined heating system capable of bi-directional heating

#7
20160377301
2016-12-29

Circulating hot water system and or appliance

#8
20160341445
2016-11-24

Low pressure drop water heating system

#9
20160187028
2016-06-30

Immediate hot-water supplying system

#10
20160116185
2016-04-28

Method for controlling cascade boiler system

#11
20150354831
2015-12-10

Combined heating system capable of bi-directional heating

#12
20150330666
2015-11-19

Control system for modulating water heater

#13
20150114313
2015-04-30

Hot water supply system

#14
20140379147
2014-12-25

Hot water supply system, water heater and hot water supply control method

#15
20140137851
2014-05-22

Common venting system for water heaters and method of controlling the same

#16
20130266300
2013-10-10

Renewable energy hot water heating elements

#17
20130247997
2013-09-26

Circulating hot water system and or appliance

#18
20130233510
2013-09-12

LIQUID HEATING SYSTEM

#19
20130048745
2013-02-28

Modulation control of hydronic systems

#20
20120288805
2012-11-15

HEATING SYSTEM AND METHOD FOR OPERATING SAID SYSTEM

#21
20120204816
2012-08-16

Control system for modulating water heater

#22
20120191256
2012-07-26

Masterless control system methods for networked water heaters

#23
20120160472
2012-06-28

Method for controlling a parallel operation of a multi-water heater

#24
20120138149
2012-06-07

Hot water supply system, water heater and hot water supply control method

#25
20120090560
2012-04-19

Water heater and control method therefor

#26
20120090559
2012-04-19

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

#27
20120090341
2012-04-19

Water heater and control method therefor

#28
20120046801
2012-02-23

Hot-water supply system

#29
20110079653
2011-04-07

Heated makeup air unit

#30
20110048344
2011-03-03

WATER HEATING APPARATUS

#31
20100330512
2010-12-30

Multi-boiler and control method thereof for preventing back flow of exhaust gas

#32
20100260490
2010-10-14

METHOD AND ARRANGEMENT FOR HEATING BUILDINGS HAVING AN INFRARED HEATING SYSTEM

#33
20100043727
2010-02-25

HEATING SYSTEM

#34
20100004786
2010-01-07

Control system for modulating water heater

#35
20100001087
2010-01-07

Variable output heating control system

#36
20090295157
2009-12-03

Cogeneration system

#37
20090151654
2009-06-18

Water heater

#38
20090144754
2009-06-04

Bios routine avoidance

#39
20090064944
2009-03-12

Control system for modulating water heater

#40
20080216771
2008-09-11

Control system for modulating water heater

#41
20080179416
2008-07-31

MODULATION CONTROL OF A HYDRONIC HEATING SYSTEM

#42
20080179415
2008-07-31

Hydronic heating system

#43
20070295830
2007-12-27

Modular boiler control

#44
20070144458
2007-06-28

Cascade unit for a heating system with two or more heating boilers

#45
20070067047
2007-03-22

Hot water supply system

#46
20050230491
2005-10-20

Multi-stage boiler system control methods and devices

#47
20050230490
2005-10-20

Multi-stage boiler staging and modulation control methods and controllers