There are a great many hot tub choices available; that means there's something for every lifestyle and every space. Explore your options before buying, and you'll be certain to get the spa best suited to your needs. And to make sure you cover all the bases, go shopping with these tips from the National Spa & Pool Institute (NSPI).

Get what you want. The terms "hot tub" and "spa" mean the same thing. However, there are two types of hot tubs -- self-contained and non self-contained. With a self-contained or portable spa, the electrical, filtration and heating systems are contained in the spa's exterior or cabinet. These types of spas typically are installed above ground; however you easily can achieve an attractive, built-in look by installing your spa partially above a surrounding deck. Know that these self-contained units can be moved and re-installed elsewhere, if you choose. Non self-contained hot tubs are installed inground and are considered permanent. Often these spas are part of a spa-pool combination; the electrical, filtration and heating systems are located away from the spa.

Suit yourself. Before deciding upon which spa to buy, think about how you'll use it. If you want to entertain, a large, company- and family-friendly model with plenty of seating might be the way to go. A deeper, less contoured tub is ideal for exercising. If relaxation is your goal, check out spas with lots of varied, massaging jets and comfortable seating.

Accessorizing. There are a variety of maintenance and aesthetic accessories to personalize your spa and make it even more enjoyable. Take a look at convenient cover-removal systems and easy water-care methods. Handsome deck surrounds and/or enclosures, special lighting and jets, audio and DVD systems, water features and more can make your spa as beautiful as it is comfortable.

Play it safe. The National Spa & Pool Institute recommends a locking safety cover for your spa. Check to see if this is included in the price of your unit, and make sure it meets the American Society for Testing and Materials (ASTM International) F1346-91 safety standards. In addition to a locking cover, a wide variety of alarm systems are available and affordable that add another layer of protection. Complimentary safety information and brochures are available from NSPI and may be obtained by visiting www.nspi.org or calling (800) 323-3996. Most importantly the NSPI reminds all hot tub and spa owners that there is no substitute for constant and responsible adult supervision when your spa or hot tub is in use.

Location, location, location. Portable spas require very little site preparation. You'll simply need a dedicated electrical outlet (110 or 220 volt), a standard garden hose, and a firm, level area that can support the weight of your unit. Decks and patios generally are perfect. (Some manufacturers even offer deck design online so you can see how your finished project will look.) You'll want a location that offers both a nice view and some privacy. When installing a permanent unit -- especially one that is part of a pool -- consider incorporating a water feature, such as a stream or a waterfall, to tie the two elements together.

Find the right dealer. Once you decide what you want and where it's going, take some time to choose an experienced, reputable dealer or manufacturer. Look for an NSPI-member decal, and you'll get someone who is dedicated to providing excellent, uncompromised service. Then do a little homework and ask: How long has the company been in business? Have there been any complaints filed against them by the Better Business Bureau? In addition to being a member of NSPI, is the company also affiliated with other business organizations such as the local chamber of commerce? Does the dealer offer both sales and service? And have the dealer's staff earned any of NSPI's specialized training designations, such as the CSP Certified Service Professional or CBP Certified Building Professional? Finally, do the manufacturers they represent certify them?

Try it, then buy it. The best way to really make sure you get the hot tub that's perfect for you is to try it out. Many retailers encourage you to test soak before you buy. If you do, note the depth of the water, the seating capacity and location of seats, and the variety and power of the jets. Look for a hot tub with seats deep enough to cover your shoulders; others should be high enough to let you cool down. Make sure you can stretch out and get comfortable.

Get it in writing. A reputable dealer won't mind putting everything in writing for you. Make sure your contract includes a detailed description of the equipment you're buying (including the brand names); the set-up date; a statement indicating who pays for shipping, delivery and set-up; a description of any aftercare service or scheduled check-ups; and a copy of the warranty. Get all of this in writing before signing anything. Don't be shy about it.

Know your warranty. Get a copy of your warranty before you sign the contracts. And be sure to read the fine print. Does your coverage include parts and labor? Will there be any out-of-pocket expenses if you need to replace the unit while it's under warranty?

Let the pros do it. Make sure a qualified electrician does any electrical work according to local codes. And check with your local building inspections office to find out whether you need a permit.

Finally, enjoy yourself. That's what it's really all about. You'll find that today's spas are amazingly relaxing and practically carefree. They are powerful, yet energy efficient. They offer pure, clean water with a minimum of chemicals and fuss. And once you've done your homework, you'll know you've gotten the right hot tub for you.

To begin your shopping, check out some useful Web sites. Visit www.nspi.org, www.hottubliving.com and www.poolandspaliving.com for helpful information and pictures of the world's most beautiful spas and hot tubs. For more information on purchasing and enjoying a hot tub, contact NSPI at (800) 323-3996.