Mine is set to 35 degrees. It is on a south facing wall in a protected area and tends to stay warmer as a result. I want it to come on when actual temps are close to 32 and this works well for me. YMMV. Any higher and you're just paying for more electricity.
 
Thread Status
Hello , This thread has been inactive for over 60 days. New postings here are unlikely to be seen or responded to by other members. For better visibility, consider Starting A New Thread.