â— High efficiency and energy saving: Adopting the most advanced third-generation double-helix high-efficiency casing heat exchanger in the United States, the energy efficiency of the unit reaches the latest height of its kind, truly claiming the vanguard energy-saving. â— novelty: the use of unconventional design thinking, the proportion of units to coordinate, nice. â— A multi-purpose machine: The unit can meet the needs of users air-conditioning, but also the use of waste heat recovery, to provide users with hot water, the real multi-purpose machine to achieve a function.