
Heating up the Intex 28431EP PureSpa Plus really depends on where you're starting from and where you want to go with the temperature. Based on our research, if you're aiming for around 98°F to 104°F, it usually takes anywhere from 12 to 24 hours. But, this can vary if external factors like ambient temperature or wind are in play.
The spa has a built-in heating system that gradually warms the water by about 1.5°C to 2.5°C per hour, which is pretty typical for spas of this size. The manufacturer mentions a 1,300-watt heater to help with this.
A nice feature about this model is its energy-efficient ground cloth and cover which help maintain temperature and reduce heat loss. Placing the spa on an insulated surface and using the thermal blanket effectively can make a noticeable difference.
Some folks suggest starting the heating process in warmer conditions or during the day to make it a bit quicker.
While warming up might take some time, once it's ready, you'll be in for a relaxing soak right at home.
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