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8 DIY Tips for Furnace Maintenance


Winter is Coming

Is your Ready?

A  well maintain furnace is an absolute must for the cold months. A furnace lasts around 15 years on average. Follow the steps below to get the most out of yours.

1. Be Safe!

When performing DIY home heater maintenance, safety is your number one priority. Make sure to kill power to the heater when working on it. Do this by tripping the circuit running to the furnace. If you smell gas, do not attempt to fix the problem on your own. Leave your home and call your local gas company.

2. Replace the Air Filter

This is an easy way to get the longest life from your furnace. Filters trap dust and debris so you don’t breathe it in around your home. Filters also prevent debris from becoming lodged in the furnace. Replace the filter at twice a year. You can buy different types of filters depending on your needs. There are filters that focus on trapping pet dandruff and fur, as well as filters that are antimicrobial for allergy concerns. When changing the filter, make sure to place the filter facing the correct way. Small arrows around the filter frame and printed on the filter itself will help direct you.

3. Clean the Furnace

Filters are an effective way of stopping debris from entering the furnace but stragglers do slip through small gaps. Cleaning the furnace itself is a great way to remove the debris the filters  missed. To access this area, remove the panels that cover the filter You may need to remove screws.

4. Wear a breathing mask

You can find these masks at your local hardware store. They are inexpensive and come with an elastic band to help keep them secure on your head. They will keep you safe by preventing the inhalation of dust and other particles.

5. Inspect the Flue Pipe

If you’re not familiar, the flue pipe is the large silver pipe,that looks like a robot arm, attached to the furnace. Small holes in this duct can leak deadly carbon monoxide into your home. You can patch small holes with foil tape. Flue pipes that have larger holes or corrosion will need to be replaced, however.

6. Clean Your Floor Vents

Whether you have vents that are flush on the floor or ones that meet at perpendicular angles between the floor and the walls, cleaning them can help make your furnace more efficient and your home healthier. Fall is the best time of year to do this. Like the filter, these vents collect dust, pet hair, small toys, and food scraps. Any debris will reduce your energy efficiency, forcing you to crank up the heat. Cleaning these vents will help prevent health problems like nasal congestion, sinus congestion, colds, allergies, asthma, eye irritation, and more.

7. Check the Fan Belt

Fan belts can wear and become loose, causing your furnace to run inefficiently. Check for any glazing, cracking, or fraying. Push down on center of the belt. There should be a dip no more than 1/2″-3/4″.

8. Clean the Blower Blades

Like vents and filters, blower blades can become clogged with dirt. The easiest way to clean them is to brush them with a small brush to loosen all dirt and debris and then vacuum everything up.

Hire Professional Furnace Cleaners

A furnace is like a car: it’s expensive but designed to be a long term investment. You should expect at least 15 years out of your furnace but you can get 20 if you maintain it properly. The best way to do this is to hire professionals. At Superior Comfort Heating and Cooling, we perform three-fold furnace care: Inspecting, Cleaning, Maintaining.

The experts at Superior Comfort will inspect your furnace to ensure everything is running properly, to see if any damage or debris has accumulated, and to decide on the best method of cleaning it. Once, we’ve inspected your heater, will make it spotless with our professional cleaning equipment. Finally, we’ll suggest future repairs and maintenance to be done so you can get the most out of your furnace. We’ll perform our signature Heating Clean and Check including:

  • Check Thermostat Operation
  • Check and Clean Pilot/Ignition Sequence
  • Check and Clean Main Burner Operation
  • Check Flue Draft on Natural Draft Furnaces
  • Check Fan Switch
  • Check Primary Limit Operation
  • Visually inspect Heat Exchanger
  • Check C.O. with Gas Combustion Analyzer
  • Check Blower Wheel
  • Replace Filter
  • Check Furnace Temperature Rise
  • Start Furnace and Leak Check Gas Pressure
  • Check Switch Operations
  • Check Humidifier Operations (if applicable)
  • Operate Furnace Through Complete Cycle

Contact Superior Comfort Heating and Cooling for a free Heater Clean and Check quote!



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Superior Comfort, conveniently located in Flat Rock, is a leading supplier and contractor for heating and cooling sales and service.

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