You might remember the days when a boiler tune-up mostly meant adjusting the flame. The flame was supposed to be solid blue with the tips slightly rounded. If the flame was soft, wavy and contained ...

There is currently a large dependence on coal for power generation. As coal-fired plants cause environmental and health hazards, technologies such as swirl flow and air staging have been proposed to ...

The combustion analyzer has become a modern mystery to most service technicians. Let's face it; there isn't a lot of information available on performing a combustion analysis on residential heating ...