A furnace filter should be changed about once every three months. A furnace filter should be changed more often in the event of pollen, construction dust, cold spells, or other amplifying factors.

Add Yahoo as a preferred source to see more of our stories on Google. A man kneels while pulling a dirty filter out of a furnace - Backyardproduction/Getty Images Changing your furnace filter is one ...

Creating a list of reputable contractors is the first thing you, a homeowner who's planning for a new furnace installation, should do to avoid overpaying for your project. Just as crucial is to ensure ...

Your furnace is a complex piece of machinery, and to keep it functioning properly through the coldest winter months when you depend on it most, it needs regular maintenance. HomeServe Editorial ...