It usually takes about 30 minutes for a sauna to heat up. However, if your sauna isn't heating up like usual, you may need to call a technician to come and take a look at it. There could be something wrong with the sauna that needs to be fixed.

It takes about 30 minutes for a sauna to heat up. If your sauna is not heating up like usual, there could be a variety of reasons for it. One reason might be that the sauna needs to be cleaned. Saunas can get dirty over time, and if the dirt and dust accumulate, it can block the infrared rays from heating up the cabin. Another reason might be that the sauna heater is not working properly. If this is the case, you will need to have it serviced by a professional.