How can I secure my window? June 30, 2023 02:21 Updated Apply a small window lock to your window or window track. This item is readily available from other retailers. Related articles How much clearance does the Gradient unit need between the unit and the nearest furniture in order to function properly? How can I seal my window once the Gradient is installed? How do I turn the unit on and off from the Gradient app? What comes in the install kit box? Does the Gradient use heat pumps?