| Fuel |
Gas-fired |
| Structure |
Water Tube |
| Pressure |
Low Pressure |
| Type |
Natural Circulation |
| Place of Origin |
Guangdong China (Mainland) |
| Brand Name |
ROC |
Black Gold Series,Half-Condensing Gas Boiler Power Available: 22-25kw Features: 1,Originaldoubleexcellentheatingexchangesystem,thermalefficiencyupto98%,FirstGradeEnergyEfficiency 2,Innovativeanti-corrosioncoatingdesigntoprolongservicetime. 3,Dynamicbig-screenLCDdisplay,humanman machineinterface,easyoperationandmaintenance. 4,Microcomputerintelligentcontrol,automaticdetectionofrunningstate. 5,Digitalprecisetemperaturecontrolsystem,arefreetoadjusttemperature. 6,Gasflowproportionalcontrol,variablefrequencyandenergy-savingheating. 7,Greenenvironmentalprotection,ultra-lowemission. 8,Ultra-quietdesignwithaircombustion,extremelyquiet. 9,Multiplesecurityfeatures,automaticreturntoworkstatus,securitynoworries.