General Information :
Keeping your furnace clean will improve its performance, cut your heating costs, keep up your indoor air quality and even extend its useful life.
Tools & Technique :
Generally, maintaining your furnace consists of changing the filter regularly and keeping heating vents open and free flowing.
Change the filter, at least twice a year. Follow the manufactures recommended procedure. It is usually a very simple job.
Dust and/or vacuum the vents as part of your regular schedule. Occasionally, remove the vent, if possible, and clean up any accumulations of dust, lint, etc.
Have your furnace serviced regularly. Follow your manufacturers recommendations.