Furnace filters should be replaced or cleaned at the beginning of the fall season and about once a month during periods of continuous use. To check if the filter needs to be replaced or cleaned, take it out and hold it up to the light. If it looks clogged, replace it with a new filter of the same type. Remember dirty filters reduce efficiency and costly repairs.
Always make an appointment for your furnace's annual checkup. If you have A/C unit it can be inspected at the same time. A well maintained
system in the long run
will save you money and prolong the life of your furnace. Think of it like vehicle maintenance. You wouldn't want to wait till you have 100,000 miles on your vehicle to have your oil changed. Without a yearly cleaning and inspection, a system can wear itself out more quickly, pump deadly carbon monoxide into your home, or just stop working.
Annual inspections should include safety check, filer
replacement, cleaning debris from blower
, checking belts, visual inspection for air duct leaks and an operational furnace test.