How Dirty Ducts Hurt Your HVAC System
When your air duct system is dirty, the system has to work harder, using more energy to transfer heat. According to the US Department of Energy (DOE), the "HVAC system accounts for 40 to 60 percent of the energy used in US commercial and residential buildings." The case is clear: ensuring your HVAC system is maintained and functioning properly will save you both energy and money.