... rapidly, CE.CCC.SGS.ISO.easy installationSpecificationsinstant electric water heater with patent heating technology 380v/3phase, 9kw, 12kw,15kw ... ,18kw,21kw 20 days deliveryPortable electric water heater with patent heating technology, CE,SGS,CCC,ISO approved ... -enclosed loop heating system, instant for hot water with less heating loss,nano insulation material which totally separates ...