Most of our options above are inflatable hot tubs or plug-and-play spas that use a standard 110-volt outlet. These don’t require any professional installation so they are nice and easy to set up yourself. They also draw less power which can save energy and reduce your electricity bills. However, this can mean they take longer to heat up and can have difficulty staying warm in colder temperatures.
220-volt hot tubs and above and most hard-shell hot tubs will require professional installation that can cost thousands of dollars. Despite this they tend to heat up quicker and stay warm all year-round.