Q: I turned on my furnace for the first time this year, and it made the whole house smell musty. I checked the filter and found it caked with dust, so I replaced it with a new filter, and the indoor ...

A man kneels while pulling a dirty filter out of a furnace - Backyardproduction/Getty Images Changing your furnace filter is one of those home maintenance chores that's easy to forget until you've got ...

If you’re thinking you only have to change your furnace filter once a year, you may be shortening the life of your furnace.

Furnace filters are an important component of your home's HVAC system, but is it really worth it to splurge on the more ...