1. Easy to install: There are no refrigeration connections to be made-just water fittings and an electrical plug. Any plumber can do it.
2.Energy-efficient heating performance: It's much cheaper to operate than electric element or gas bottle water heaters
3.Space efficiency: Unlike split-system units, all components of a complete refrigerant systems are contained in one location, making package units ideal for situations in which indoor space is at a premium
4. Security and stability: Digital controller will continually monitor performance
5.High efficient heat pump rotary compressor: Famous brand such as Hitachi Rotary, Toshiba Rotary