I have an issue with mold in the corner of a few rooms. Therefor I bought small heat plates, that consume around 50 Watt per hour. I have set up a rule that switches (with shelly wall plugs) the heaters on when temperature outside is below 8.5 C. I will now add a rule that switches them off after one hour and switches them on one hour later. Any idea how to reach this goal? THX!