Always change the filter before turning on your heat. Even if you changed it close to the end of the season last year, it has been sitting throughout the spring and summer, which means it can still collect dust and other particles, which can restrict airflow. 
While you only need to change your air filters once a month when using your heat in the winter, buy extras in the fall so that you always have one on hand when it is time to change the filter. Call CoolQuest Today live operators standing by 24/7
Hernando (352) 277-3027 – Pasco (727) 260-5313
Pinellas (727) 437-0707 – Hillsborough – (813) 775-4132
CoolQuest, Inc. Air Conditioning 