How do I find my All-Weather 120V heat pump's serial number? April 03, 2026 17:00 Updated You can find the unit serial number printed on the unit, in the Gradient app, and in the settings on unit UI. Related articles How do I install my unit? Do I need Wi-Fi to use the All-Weather 120V heat pump unit? Why does my All-Weather 120V heat pump not show up when I am searching for units to connect to? The cord isn't long enough. What should I do? What are the requirements for the window where the unit will be installed?