Can I connect more than one Gradient unit to the app? September 21, 2026 23:14 Updated Yes. You can connect and manage up to nine Gradient units within the Gradient app at one time. Related articles How do I access the set temperature screen? How often should I clean the All-Weather 120V heat pump's air filter? What is the back button used for? Why does my Gradient unit not show up when I am searching for Units to connect to? What is the CEER and HEER of the All-Weather 120V heat pump?