The most important thing you can check yourself is the filter. A dirty filter can cause extra strain on your heating equipment, raise heating costs and shorten the life of your furnace. Make sure your filter has a cover over the slot that returns the air. If the furnace filter does not have a cover over the slot this can be a serious safety hazard.
If your system has pleated filters, these usually can last up to three months. If your filters are permanent, you should try to clean these once a month, especially during high use seasons. Electronic air filters can usually be checked every 2 months.
Remember, your best assurance for the longevity of your heating equipment is to do at least yearly inspections with a heating and cooling professional. Keeping your filters clean is one thing you can do to enhance the operation and life of your system.
As always, you can contact us with questions about your furnace or to do furnace maintenance.