How wide must my window be to fit the All-Weather 120V heat pump? January 14, 2025 16:07 Updated Windows must be a minimum of 26 inches wide to fit the All-Weather 120V Related articles What is the voltage of the All-Weather 120V heat pump? What measurements do I need to check if Gradient will fit my window? What room size is the All-Weather 120V heat pump designed to cover? What are the window dimensions required for installation? What is the clearance required for proper airflow?