What are fan speeds? December 03, 2024 17:05 Updated The All-Weather 120V heat pump has six fan speeds: Silent, Low, Medium, High, Boost, Auto Related articles What do the numbers on the On-Unit UI mean? Does this All-Weather 120V heat pump have smart controls? Is a remote control standard when I purchase an All-Weather 120V heat pump? How do I clean the All-Weather 120V heat pumps condensate filter? What do I do the first time I turn on the All-Weather 120V heat pump?