Convenience. Combination hot tubs must be heated up prior to each use. This requires more energy than portable spas, which maintain a constant ready temperature. In addition, heating up water causes a significant delay before the owner can use it. This delay can discourage regular usage, as it makes fitting a daily soak into your routine more difficult.
These Lay-Z-Spas are great for your health and relaxation. Relaxing in one of the hot tubs can help you melt the stress away from a hard days work. Or after you workout at the gym. They help in the recovery of muscle strain while lifting weights. You will recover from lactic acid build-up, this is when your muscles ache the next day or even a few hour after training. Jump into your Lay-Z-Spa as soon as you can will help reduce the lactic acid build-up and you will feel great as well.
Like a spa, a hot tub has built-in jets to provide warmth, relaxation and a massage effect on people's muscles and joints. Both are used for therapeutic reasons and socialization. In the early days—the late 1960s and early 1970s—hot tubs were made from wood, including cedar, redwood, cypress, teak, or a composite. In the mid-1970s, the technologically advanced portable acrylic spas were introduced, replacing the wooden tubs in popularity.
The tub is made to comfortably seat four to six adults, and a cushioned ground mat adds to the comfort. If you don't need such a spacious hot tub, consider the Intex PureSpa 77 Bubble 28403E. The ground cloth not only protects the hot tub from dirt and debris, it also puts an extra layer of cushioning between the people in the tub and the ground underneath.
The downfall would be the amount of time it takes the heat the water, even with the rapid heating system. This is a downfall that almost all of the inflatable tubs are going to have.  In 24 hours, the water will heat up to a maximum of 104 degrees. Some have reported that filling it with hot water to start off will raise the temperate in only six hours, but if you take this route, you’ll be spending more money on hot water.

This square-shaped tub in which you and up to other 5 friends can have fun and relax whenever you want to is our top pick not only due to its generous capacity, but due to the durable construction it boasts which ensures you are making a long-lasting investment. It comes with a 22-foot long power cord that eliminates the need for extension cords, and the easy assembly only requires for you to inflate and start using it. It comes with all the accessories you could ever need, including a cover that helps keep the water clean when it isn’t in use, a chemical floater where you can add water-cleansing chemicals, and two filter cartridges that tend to the elimination of impurities to ensure you won’t sit in contaminated water.

It’s quite easy to set up despite its size, and the quality of the build is superb. One advantage of the size is that when the water grows cool enough, little kids can use it as a swimming pool the next day. A lot of grandparents have noted this in their Intex hot tub reviews. If you want to use it as a hot tub again, just turn the heater on for about 10 hours.
There is a safety function built in to this pump system which automatically goes into hibernation if no button is pressed in 72 hours. If you have the heater system setup on timer and you don’t actually use the hot tub and press a button for 3 days it will turn off meaning a long re-heat if you don’t notice. This is less of a problem if you use your hot tub daily, but if you are a weekend user this can be a pain if you forget to go out and press a button to let it know you’re still there.
Outdoors: Obviously in the summer months outdoors is going to be great. If you are in a particularly hot region then, although it is tempting to leave the spa unprotected in the sun to keep water temperature up.  Be cautious of too much hot a sun, as the tub can deform with exposure to excessive prolonged heat. Setting up or putting it inside a gazebo is a perfect solution to overcome this. See our guide to the best gazebos >>
They don’t usually use real water jets, but instead use fans to “blow” the air around (also because of the 120 volt outlet), which causes them to cool down much faster than a regular hot tub. This cooling effect is only made worse by the fact that the materials they are made from lose heat much faster than the materials used on a regular hot tub. All in all, you aren’t likely to get more than 15 minutes to a half an hour of good heat out of an inflatable hot tub.