09/14/2026
People complain all the time that high efficiency equipment is not built very well. Todays boiler is 13 plus years old , never serviced. over an inch of buildup in the heat exchanger, what led me to open the boiler was the flame sensor distortion seen here. 3rd photo is the heat exchanger post cleaning, scale was fused to the tubes and not moving anytime soon.
A new boiler will be required here soon enough.