1.Major thermostats : ego (german brand) 2.Backup thermostats : wako (japanese brand) 3.Hot water tank insulation foam, ul approved Model no.:bd-10l Type:boiled hot water Tank capacity:hot: 10l Watt:hot: 3600w Water connection:tap water Power:220v Dimension:34x36x64cm Ro or filtration system:filtration system is optional and hang-out 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 4. Cj-10l/20l/20l8i is required independent power supply with 5.5 width wire -