A multizone system is a heating and cooling system where you have a separate indoor unit in each room of the house. Each indoor unit provides heating and cooling to the room where it’s located. Each indoor unit is connected to a multizone outdoor. Depending on the overall required tonnage of each room, a multizone outdoor unit is capable of accommodating up to 8 indoor units. If your home requires more than 8 units (zones) or the overall tonnage is beyond what one outdoor multi-zone system can accommodate, then you simply install a second outdoor unit to allow for additional indoor units.
It’s very common to have two outdoor units with multiple indoor units. Each room is controlled by its own thermostat and you can set different temperatures for each indoor unit. Ductless systems are extremely efficient and offer industry-leading SEER ratings. Multi-zone systems allow homeowners to achieve their exact desired temperature in each room of the house, no matter the time of year.