Guangzhou Deron Heat Source Facilities Co., Ltd provides Water Source Water Heat Pumps as follows: 1,Rhine scenery (DE-23W/S,DE-46W/S,DE-92W/S,DE-180W/S) We provide central heat water systems for lots of hotels, restaurants, schools, institutions, communities and hospitals, By applying the integration of heat pump technology from Germany Deron and air energy utilization system ,energy saving efficiency is reached as high as 75 percent. Technical details as follows(water source): Compressor: Gu Round of the United States (COPELAND) Flexible Scroll Expansion Valve: Emerson ALCO Fan: Original CIE European Imports Armor Plate: Thickening and Excellent of Armor Plate Heat Exchanger: Joint Funded Enterprises in High-Efficiency UAR.