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 ...

Keeping your furnace clean is important in order to have it run properly in winter (or year-round if you have whole-house air conditioning). A clean furnace will burn less fuel -- thus saving you ...