You will discover 4 principal kinds of HVAC systems: Break up systems, hybrid systems, ductless systems and packaged heating and air systems. You need to opt for what’s most suitable for your private home and price range.H? th?ng chiller m?ch n??c 4 Major Secondary Stream • T?i m?ch n??c three và four thì h? th?ng s? d?ng chiller bi?n t?n ??