Inflatables use a 120V electrical outlet. Unfortunately, this translates to a drastically reduced heating power when compared to the hard-side hot tubs. But this should not necessarily be viewed as an issue considering the fact that the water in them can reach quite high temperatures if you do not cheap out and invest in one of the better models on the market. For example, the top of the line SaluSpa Hawaii HydroJet Pro can even reach up to 104 degrees Fahrenheit, a water temperature that should suffice regardless of your preference.
Backyard Flexibility. Keeping your pool and your spa entirely separate allows for more flexibility in the design of your backyard oasis. For example, your spa can be located on or in your deck, while your pool lies down a garden path from your deck’s stairs. Your children can play in the pool while you relax in the hot tub, enjoying your calm retreat.
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.
For the last 40 years or so, the Intex family of companies has made spas, pools, airbeds, and other types of furniture and accessories. Their first inflatable item was a beach ball, and they made their first above-ground swimming pool in 1997. Intex spa tub products can be found in more than 100 countries all over the world. The Intex spa reviews are generally positive.
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.