1.Environment Friendly & Energy Efficiency Design 2.Major Thermostats : EGO (German Brand) 3.Backup Thermostats : WAKO (Japanese Brand) 4.Hot Water Tank Insulation foam, UL approved 5.R-134a refrigerant: INEOS (Japanese Brand) 6.Easy maintenance, no tool required for replacement Model No.:BD-1001 Type:Big Capacity Water Drinking System Tank Capacity:Hot: 5L to 20L ; Cool: 3L to 20L Watt:Hot:750 to 4000W (by demand) Dimension:131 x 43 x 135cm RO or Filtration System:Built-in RO Water System Safety Design: 1. Double Protection with 2 Thermostats 2. Safety faucet body : Anti-scalded material 3. Safety faucet design: Avoid Child scalded by hot water