For homes located in areas with temperate weather conditions, one Quilt Indoor Unit efficiently and effectively conditions an average room up to 480 sq. ft. For larger rooms, or rooms with characteristics that tend to require more heating or cooling, a second indoor unit will ensure that the space is always at your optimal temperature.
When two indoor units are installed in one room, they operate in tandem to reach your set point. Both are easily controlled together in the Quilt app and on your Dial. They each will operate more quietly, run more efficiently, and create a more even temperature compared to a single or larger unit working to condition the full space.