158604 ⎘
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 with water tube or tubes the water tubes being arranged in one or more circles around the burner
BOILER AND USE THEREOF
#2HEAT EXCHANGER FOR HEATING DEVICES, AND TUBE-ASSEMBLY MODULE FOR A HEAT EXCHANGER
#3BOILER AND METHOD FOR CONTROLLING BOILER
#4Heat exchange device and heat source machine
#5HEAT EXCHANGER FOR HEATING WATER
#6Heat source apparatus
#7Heat exchanger with dual concentric tube rings
#8Heat exchanger having arcuately and linearly arranged heat exchange tubes
#9Fuel cell module
#10Dual-ring and straight fin tube condensing
#11High capacity fuel-fired liquid heating apparatus
#12Multiple-ring heat exchanger
#13HEATING DEVICE
#14Boiler
#15Boiler
#16Boiler
#17Boiler and low-NOx combustion method
#18Water heater with continuously variable air and fuel input