How often you need to change your filter depends on a number of factors. Homeowners with pets should replace their filters every 1-3 months. With pets that shed a lot or leave more dander behind, you’ll probably want to change your filter more regularly. Families with allergy sufferers should also change their filters every 1-3 months depending on the season.

To keep your heating system in top shape, replace filters regularly, keep the area around your furnace clear, and schedule annual inspections. These steps help ensure your system runs efficiently and avoids unexpected breakdowns.

Furnace units all have different lifespans, just like central air units. The average furnace will run for 15 to 20 years, or about 5 years longer than the average central air unit. This all depends on the quality of the system and its installation, the maintenance and care of the system, and how frequently it is used.

Check the label on the outer surface of your equipment to determine its manufacture date. If it’s less than five years old, there’s a good chance that your equipment is covered by a warranty. Contact the manufacturer for more details.

Several factors can indicate it’s time to replace your furnace. These include rising energy bills, frequent repairs, strange noises, uneven heating, and a yellow flame. If your furnace is over 15-20 years old or showing signs of significant wear and tear, it’s likely nearing the end of its lifespan.