As HVACR technicians, assessing whether the furnace we’re servicing is working efficiently is critical to understanding the overall health of the HVAC system — and to the success of our service call.

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 ...

The presence of unburned fuel in a power plant’s ash indicates an inefficient combustion process, as some of the energy in the fuel is being wasted. Unburned fuel also poses a risk to safety; if ...