a friend of mine has a Cal Spa hothub. He is wondering if he can get a heater bypass switch installed so it will not power up the heater in the winter months. This way the water can circulate without heating it. He doesnt want to drain the water all the time and doesnt want to keep it heated all the time either. The Tub seem to always keep the temperature to about 80 or so.
Is this a common practice? Any links to documentations would be helpful.
Is this a common practice? Any links to documentations would be helpful.