Data collection and monitoring system software can be very useful. By observing the trend data below I can see as the flue temps begin to trend upward over time. In my case I monitor these temps and generate an alarm that tells me when it is time to clean the boiler and even a danger alarm should the temps increase beyond the 'safe' limit. Just re-fired the unit this morning after thorough cleaning and of course return of the cold weather here in the northeast. Feeling warm.
![Using Data to Determine When Time to Clean Boiler / Brush Tubes Using Data to Determine When Time to Clean Boiler / Brush Tubes](https://www.hearth.com/talk/data/attachments/149/149533-a7617861190a0288d1689117bfd7b122.jpg)
![Using Data to Determine When Time to Clean Boiler / Brush Tubes Using Data to Determine When Time to Clean Boiler / Brush Tubes](https://www.hearth.com/talk/data/attachments/149/149533-a7617861190a0288d1689117bfd7b122.jpg)