The furnace is the hero of a house in winter. But there’s one tiny part inside it that most homeowners don’t even know exists, let alone realize they’re supposed to clean – the flame sensor. Left ...

If your gas furnace keeps cycling on and then turning off within a minute or so, it might be the result of a dirty flame sensor. Most gas furnaces have a small sensor designed to shut off the furnace ...

With bitter cold temperatures in Chicago down in the single digits, some homes and businesses didn't have working heat.

Some furnace tasks are straightforward and satisfying, like changing air filters or keeping vents clear, but if it’s been a while since your last inspection, calling in the pros is the safer bet. “The ...