Question: are hot tubs 110 or 220?
Answer: 110 Spas can run either the heater or the Jet pump, but not both at the same time. ... The higher voltage means that more energy (watts) can move through the wires to your hot tub at a faster rate. With a 220 volt spa, you will still use the same amount of watts that you would running a 110 volt Hot Tub for twice as long.