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) Model No.:BD-2092 Type:Hot / Ambient Water Tank Capacity:Hot:9.5L Watt:Hot:1000W Power:110V, 60Hz ; 220/240V , 50Hz Dimension:43 x 31 x 125cm RO or Filtration System:Built-in 2 stage filtration system Safety Design: 1. Double Protection with 2 Thermostats