Jets - One of the most uniquely relaxing features of hot tubs-as opposed to an upscale bathtub or pool-is that they come equipped with multiple jets. These jets channel and propel water to help soothe concentrated muscle groups, such as the neck or lower back. Hot tubs come with their jets positioned in a variety of ways and positions, depending on the manufacturer.

Size - A range of tub sizes exists on the market today. Generally, private spas for the home seat between five and nine people. Larger tubs generally warrant a higher cost.

Seating - In addition to the volumetric size of the hot tub, a consumer will want to consider the number and arrangement of seats therein. Some hot tubs come with simple plastic bench to sit on, while others offer bucket or lounge-style seating.

Maintenance - The amount of maintenance required for a tub differs according to its model. The more frequently that it is used, the more maintenance it will require. Also, if unless you are diligent about keeping the cover on it when it is not in use, it will require frequent water treatment. If the hot tub is outdoors and you do not utilize the cover, leaves and insects will fall in and the tub will require more frequent skimming and/or cleaning. Most manufacturers recommend that you test the tub's water weekly to ensure that chemical levels in the water are adequate. It is recommended that you clean the filter monthly and that you drain the tub completely once every 3 months.

Cabinet - The cabinet is the exterior of the hot tub. Many exterior materials are available, from a plastic veneer to a wood finish. You can choose from multiple colors and styles depending on the manufacturer you purchase from.

Shell - The "shell" is the interior of the tub, the basin that houses seats and holds water. Again, there many choices available for materials, from the standard blue plastic to granite and marble; the choice is up to you and your budget.

Working Parts - All hot tubs come with a number of parts that allow them to operate properly. Some of these parts include the pump motor, heater, insulation, and filter.

You will want to consider the warranty on your tub's working parts and for how long these parts are expected to last. Keep in mind that the higher quality the heater, and the more insulation used, the likelier your tub is to maintain a constant temperature. Additionally, you will want to consider how much energy the tub will use while in operation-some manufacturers offer especially energy-efficient parts or models.

Covers - A cover is essential when keeping the water in your tub clean and chemically balanced. Most distributors include a cover with the tub; however, there is sometimes an additional charge for this. If you have young children who live in or visit your home, a hot tub cover should be considered as a required accessory. The safety of your children and grandchildren far outweighs any cost of a hot tub cover.

The Bells and Whistles - The above features are all considered "standard" and, to varying degrees, essential. For the more adventurous buyer, however, there are additional features that can be included.

One such amenity is a built-in stereo and speakers; this way, you do not have to worry about toting a stereo back and forth or wiring outdoor speakers. Select tubs feature a built-in television that can retract into the tub's wall when not in use. The television and stereo are often available with floating, waterproof remotes. Another available amenity is an illuminated waterfall-this allows for tranquil sound and light to be a part of your experience.

Now you know of the different features you may want to examine when assessing the hot tub market. Your preferences and budget will help determine which of the available options might suit your purchase best. Remember that above all, your hot tub should be a place where you, your family and guests can relax and enjoy themselves.