Is the Gradient GFCI compatible? June 25, 2025 20:44 Updated No, the All-Weather 120V heat pump is not compatible with GFCI Circuits. Related articles Is the Gradient AFCI compatible? If I don't turn the All-Weather 120V heat pump off, how much power is it consuming? Can I order extra locks for the window? Can I buy one if I am located in Canada? Are you developing a sliding window product?