Heating and filtration is another area where inflatable hot tubs fall short. With a lack of insulation, inflatable hot tubs leak out their heat energy and will wreak havoc on your energy bill if kept heated. The alternative is to heat up your inflatable hot tub every time you want to use this. Even with its small water capacity, your water will only heat up at a rate of around 2-3 degrees per hour.
One of our biggest gripes with inflatable hot tubs beside the seating position and leg overlap issue is the water quality. Water in your inflatable hot tub can become unsanitary fairly quickly with such a weak filter. Chemicals can only go so far to clean such a small amount of water that is used again and again.
Hard-shell hot tubs however have a higher water capacity, professional and powerful filters, integrated heating, and full foam insulation. This means it will cost you less to keep your hot tub hot, and your water will always be clean and clear.