Obviously, the higher the rating (kW) of your heater, the faster your portable hot tub will heat up. A 6kW heater generally raises the water temperature about 6 degrees an hour. The most efficient heating elements come in contact with the water and transfer the highest percentage of heat produced to the spa water.
Modification of an old hot tub to use a digital temperature controller. . First among the things I wanted was tighter temperature control and I wanted a digital
Many people needlessly discontinue the use of their spas when the summer temperatures rise into the nineties or above. Although it may sound like a .
Amazon.com: Temperature Time Controller Thermostat for Sauna Spa Steamer Hot Tub Pool Â°F Â°C with 0.1 Degree Temp Control Fahrenheit Celsius: Home .