How often does the air filter for my heating and air conditioning system need to be changed?

Are the return air vents in your house covered with dirt?  If so, you’re not cleaning or replacing your filter often enough!Here’s a question we get asked on a regular basis; how often should I replace the air filters and my furnace?
You should replace or clean the filter once a month.  With forced air furnace [...]

The Heating and air-conditioning is only 2 years old. That’s a good thing, right?

Yes, the newer the HVAC system is then the longer it should last.  Providing it was properly installed.  This leads me to my next post.  I inspected a home last week that was 65 years old and the HVAC system had been recently updated.  I operated both units and they performed properly.  When I inspected [...]