Furnace Maintenance Tips

It is always best to have an HVAC professional conduct inspections and make adjustments to your furnace. Here are some things to be aware of that can help keep your furnace running efficiently.

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Keep the filters clean

The best place to start your furnace maintenance is with the filter. A dirty filter can cause excessive strain on your furnace, increase heating costs and reduce the life of your equipment. Make sure that your furnace filter has a cover over the slot, ensuring an efficient return-air system. Replace one-inch pleated filters once a month. If you’re unsure of the type of filter to use, your Lennox Dealer can recommend one based on your specific system. For all other filter sizes, your Lennox Dealer will check, clean or replace them at your annual maintenance visit. Remember, filters may need more frequent attention if your air conditioner is in constant use, is subject to dusty conditions, or you have pets in the house. Contact your Lennox Dealer to find out what frequency of filter change is right for your system.

Remove dirt and dust

Keeping the furnace clean and dirt free is key to it running smoothly and efficiently. An important task you can do regularly is to vacuum all the dust from the air registers around the house; all other inspections and cleaning should be done by your Lennox Dealer.

Here are some areas of the furnace your dealer will clean as part of the preventive maintenance visit:

  • Inspect the burner flames
  • Vacuum out the burner and blower cavities and clean away dust or debris in and around the unit
  • Remove the blower to clean it
  • Vacuum and brush the blower blades
  • Clean the flame sensor
  • Check the flue for gaps or dents and make sure it is venting properly to the outdoors

Want to know more?

Check out our Comfort Matters blog articles on this topic:

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