... part system is split design for cold area to install inside the house. Thus, the system ... system split design, can install inside the house in cold area to provide stable running and ... and outside evaporation enthalpy difference, brings 7% to 34% additional heating.Reliable Components1. Hitachi EVI ... } )(); heat pump(evi air to water,low temp, -25 DC, split, CE, EN14511-2:2011, EN14511-2:2007, NFPAC, ...