Heating And Cooling
Maintenance and service play a key role in the performance and life-cycle of a heating or air conditioning system. If recommended maintenance and service actions are taken, an air conditioner can last 12 to 15 years and a gas furnace 20 to 25 years.
Filters are key to many different machines. The same way they keep pollutants out of your vehicle’s engine, they are meant to protect the HVAC unit. Filters left unattended or unchecked, will accumulate a large amount of debris and contaminants from the air. When filters are too clogged for light to pass through them they are definitely in need of replacement. Leaving them in place will restrict airflow, and cause improper functioning of the unit.
Source: http://millerheatandair.com, http://goodmanmfg.com