158589 ⎘
Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
Sub-classes:DIFFUSER FOR THERMAL STORAGE TANK
#2GAS WATER HEATER
#3KETTLE APPARATUS AND METHOD THEREOF
#4Boiler apparatus and method thereof
#5Systems and methods for intelligently controlling a hybrid cascade boiler system
#6DIFFUSER FOR THERMAL STORAGE TANK
#7Systems and methods for intelligently controlling a hybrid cascade boiler system
#8Heat Exchanger
#9Electrode boiler control apparatus having intake and exhaust control valve and electronic valve, and electrode boiler control method using same
#10Tank-based and tankless water heater systems
#11HEATED UTILITY CONTAINER
#12Tank-based and tankless water heater systems
#13Heat exchanger
#14Boiler system
#15Waste heat recovery device, heat supply system, and operation method for waste heat recovery device
#16Combined heating system capable of bi-directional heating
#17Water heater system
#18Faraday Effect Circulating Heat System and Method
#19Fluid circulation type heating apparatus
#20Automated, oscillating dual-chambered heat pump, electricity generating, and/or water heating method employing such
#21Combined heating system capable of bi-directional heating
#22Combustion apparatus
#23Storage boiler
#24Heat exchanger
#25Methods and apparatus for heating air with hot water
#26Fixed (and selectively fixed) bypass pumpless combination instantaneous/storage water heater system
#27Portable water heating module
#28Companion water heater jacket
#29Companion water heater
#30Water heating apparatus with parallel heat exchangers
#31WATER HEATER
#32Fluid heater and method of use thereof
#33Fixed and selectively fixed bypass pumpless instantaneous / storage water heater system
#34Combination heater and electrical generator system and related methods
#35Boiler unit
#36Cogeneration apparatus
#37WATER HEATER GAS APPLIANCE
#38Internal heat exchanger/mixer for process heaters
#39Methods and apparatus for heating air with hot water
#40Boiler apparatus and method thereof