Be sure to store it somewhere dry, out of direct sunlight, and away from pests. Some portable spas come with a carrying bag or case. These are great for helping you get your hot tub from Point A to Point B, but they’re not the best protection for long-term storage. If you intend to put your spa away for a while, it’s best to place it in a sealed container to maintain the integrity of the vinyl while it’s in storage.
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.