System B: air-source heat pump (ASHP) with fan coil heating system. | Download Scientific Diagram
54000 BTU 4.5 Ton 3 Zone Ductlss Mini Split Heat Pump with Fan Coil | eBay
R290 GreenTherm Heat Pump
Amazon.com: YMGI Two Zone 22 SEER Dual Zone - 24000 BTU 2 Zone 12000 12000 Fan Coil Low Profile Ductless Mini Split Air Conditioner with Heat Pump for Home, Office, Apartment with