Hot Water System
When we would come up during the winter we had a problem with too many zones coming up at once.
The Boiler would run at fill blast for 22 hours, waste of fuel. So a developed a way to only run one zove at a time
This Keep the Hot water temperature at 140 F (Maximum Efficiency), when the return water reached 110 F
another zone would be activated. The ordered of zone priority is based on current time of day.
Also the the temperatures and zone activation would be recorded on the cloud.