What is the difference between a hot tub and a jacuzzi?

Jacuzzi is a registered trade mark. Spa is the generic term.

A jacuzzi and a spa offers the same kind of treatment that uses hydrotherapy in order to relieve tired muscles. It promotes good blood circulation in the body and alleviates stress as well. Furthermore, a person can pamper his day with different kinds of spa services which includes a whole body massage, aromatherapy treatment, and physical fitness activities. Moreover, cheap rates are also offered which includes spa gift vouchers and affordable rates.

Technically, the term "hot tub" refers to the older, wooden tubs with bench seating, but the terms are fairly interchangeable these days. Because wooden hot tubs have increased maintenance requirements and higher purchasing and operating costs, they are less common today; however, some buyers strongly prefer the aesthetics of wooden hot tubs.

The most common type of spa purchased today is a molded acrylic shell with built-in seating and water jets. Beneath the shell is often fiberglass or wooden framing, and a composite or synthetic cabinet.