A. A humidifier is only used in the heating mode to add humidity to the home as the house dries out. Your body evaporates moisture off your skin when it is dry inside, so you feel warmer at a cooler temperature when the humidity is kept at a higher level. If the house gets too dry you will start to have more damage to your wood trim and furniture. Also when the humidity gets too low you can experience more adverse health issues. In the summer when the humidity level is high your air conditioner works to remove the excess humidity in your home.

A. The correct size based on running a computer generated load for your home. Typically in our market we size the A/C based on a 90 degree day. We expect the A/C to run most of the day on a 90 degree day to maintain 70 degrees inside.