Guide Note

Hot tubs use very well-heated water to loosen the muscles and generally relax the body, and most often utilize water jets to massage and further promote a hydrotherapeutic experience. Hot tubs are generally located outdoors.

Fast Facts

1. One-piece tubs—commonly referred to as "spas"—overtook wooden tubs in popularity in the 1980s and 1990s
2. Have seating that can be molded into various arrangements
3. Rotational ability of the jets makes for a more effective massaging effect

"Jacuzzi" has become a term that is synonymous with "hot tub," but it is actually a brand of hot tub. The California company has been around since 1915 and purports to be the inventor of the portable hot tub.

"Whirlpool" is also used as another name for "hot tub," but it, too, is actually a company that makes hot tubs among many other appliances. The Whirlpool Corporation has been around even longer than Jacuzzi, since 1911.