Of the 3 main inflatable hot tub brands, this hot tub is the largest and has the most bubble jets (140). With an 85-inch diameter and 290 gallon capacity, this Intex model provides more personal relaxation space than any other. More room means it is easier to stretch out and easier to sink down so that bubbling water is lapping around your shoulders. That said we think 4 people is the comfortable max.
One of the people’s main concerns when it comes to owning an inflatable spa is the fact that they do not think that they are ‘up to the job’. Trust me when I say that blow up hot tubs nowadays are better than they have ever been. The quality of the materials used means that you can place them on just about any flat surface and not have to worry about them ‘breaking’.
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.