Heat sensors indicate the presence of a flame, whether they're used in a home furnace or an industrial boiler. They're also…
A red-tagged furnace is a major problem. During a maintenance call, your HVAC contractors may find a critical safety problem with your…
Your furnace will periodically turn on and off to attain the temperature set on your thermostat. This is termed “cycling”,…
If your furnace is generating loud, unusual noises, it's critical to determine where the sounds are coming from in order…