If your system has ductwork, have you thought about getting ductwork cleaning or sealing? Ductwork accounts for 30% of energy consumption. What happens when the ductwork has a tear along the seam or a hole in the middle of it? The home energy bills significantly go up. The HVAC system works longer, harder hours since the temperature controlled air is literally flying out the door. Trust me, you will know when your ductwork has a leak. The home won’t be the right temperature and the bills will be through the roof. Get a HVAC contractor to perform ductwork sealing. It is an easy, non invasive procedure that saves a homeowner a lot of money. In the end too, most HVAC companies offer a five year guarantee that their sealant will hold up or they will come back for free.
What about the ductwork sealing? Not only is dirty ductwork bad for the air quality, it is no good for the system either. Any part of the HVAC system with dust is sluggish, tired and more likely to produce inferior results. Every 5-7 years make it a point to clean out your air ducts.