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-2097 Type:cool water Tank capacity:cool: 2.2l Watt:cool:200w Power:110v, 60hz ; 220/240v , 50hz Dimension:43 x 31 x 72cm Ro or filtration system:2 stage filtration system hang-outside 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 -