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 ...

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 ...

Forced-air heat is generated at a central furnace and is then distributed and delivered to the conditioned space via a duct system. A properly designed heating system will generate quiet, filtered, ...

As temperatures drop, your furnace becomes the unsung hero keeping your home warm and comfortable. But like any hardworking appliance, it can run into trouble, especially after months of sitting idle.