With the outside temperatures dropping, it is once again heating season, which means it is time to turn on your boiler. Keep in mind that, like us, boilers need air and personal space.
They looked just like any other circuit breakers: a set of electrical devices mounted in a steel box. But inside, invisible to the human eye, was a hidden danger. The breakers were smoldering at 159.7 degrees. Thermography made the danger visible.