Church heating control system

I am looking for a system to control a somewhat complex heating system in a church and ancillary buildings,
I need scheduling,occupancy,and temperature sensing.

Are there examples of similar projects that might help me discover homey please. Any assistance gratefully received.


Search the AppStore for Heating, there are several Apps for heating.

What type of heating are you using? HVAC, radiators, floorheating? What brands do you have?