... Multifunctional Air to Water Heat Pump *3.5~28KW,DHW,heating,cooling *High COP, reliable system,good reputation *CE&RoHS Multifunctional Air to Water Heat PumpThis ... seasons and conditions. They could supply hot water to warm house in winter, supply cold water to cool the house in summer, and ... 737895128133135155190Noise Level at 1m/4m/10m (dB(A)51/40/3251/40/3254/42/3456/44/3658/46/3858/46/3860/48 ...