Welcome to our forum.
Wouldn't it be easier to just wire a light into the 240v circuit?I mean, if you trip the breaker, by the time you notice anything on a temp probe, it's been awhile.
I like the ability to monitor the temp.What if the GFI is OK but there is another problem with the tub that kills the heater?
Well, there is that. So do both.But how much protection do you want to buy before you just go open the cover and stick a finger in there?
Try Minnesota.Gonna soak in the snowflakes tonight.
My spa runs twice a day for filtering and I was concerned about water pipes freezing that are in the control area. We don't have street lights in the country, so I never worried about them freezing.