im the operations manager of my local community center and installed a nest as the building gets little use during Covid. I set the safety temperature to 45 degrees. Since setting it up, our furnace has failed twice. The first time, I was already there working on it when the temperature dropped to 45 and I got a notice on my phone when it did. This time, it took me longer to notice and by the time I did building temperature had dropped to 37, and I never received a notification. Is there a better way to have nest alert me if the building temp drops? Any idea why I didn't get a notification?