I originally got a TH for my daughters radiator cover. I have put an LED light strip in it along with a calming lavender smelly plug in. We use that as a night light for her and the air freshener comes on as well but it will also come on in the day if the radiator is hot so she can see it is on.
Unfortunately, that just wouldn’t work with the stock TH as the timers and the temp auto switch don’t work well together, hence why I went down the route of this dth and firmware. now it all works well! Thank you again @erocm1231!
After that, I just decided that any I now buy will also be TH’s as you have that bit more functionality and the price difference is next to nothing.