As I had said, I tested the heat 7 days ago by upping the thermostat, look for flame, heat to baseboards, then returned the tstat to 50. Today I show up and the tstat is at 50, same as it was a week ago, but at 5 am it blows off as per the owner. I suspect something has gone wrong between then and now, 7 year old Utica Boiler.