Shelly 4PM Heating System Automation Success Story

I wanted to share my success story with the Shelly 4PM and my heating system setup. After some trial and error, I managed to create a system where the boiler stays on whenever any of the heating zones are active. Here’s how I did it:

  1. Problem Identification: I needed the boiler to stay on as long as any heating zone (central heating, underfloor, or plinth heaters) was active. Simply turning the boiler on with each zone wasn’t enough because it would turn off as soon as one zone was deactivated, even if others were still running.

  2. Solution: I programmed the Shelly 4PM to monitor all heating zone inputs. If any input is active, the boiler output remains on. This ensures continuous heating as long as any zone requires heat.

  3. Implementation: Using a simple script, I set up logic to check the status of all heating zones. If any zone is on, the boiler stays on. Only when all zones are off does the boiler shut down. This approach ensures efficient heating without unnecessary cycling.

  4. Outcome: The system now runs smoothly, providing consistent heating across all zones. This setup has saved me from manually managing the boiler and has improved overall energy efficiency.

I hope this helps anyone else looking to automate their heating system. It’s a great feeling to see everything work seamlessly together!