- 1). Change the filters in your oil furnace at the recommended intervals. Read the manual that came with your furnace to determine how often you should change the filters, then change them at the appropriate time. Set a reminder on your calendar to make sure you change them at the appropriate time. Changing the filters regularly allows the oil furnace to run more efficiently.
- 2). Clean the oil furnace at least once per heating season. Having your furnace professionally cleaned can increase its efficiency and allow you to spot any potential problems when they are still small. You can clean the furnace on your own if you wish, but it is generally a good idea to have a professional inspect the unit at least once a year.
- 3). Check the ductwork running to your oil furnace and throughout your home. You may be able to check the ductwork around the furnace on your own using a flashlight, but you will probably need to hire a professional to check the rest of the home. A ductwork inspection can reveal blockages and soot buildup that reduce the efficiency of the furnace and cause you to use more fuel than you need to.
- 4). Use high-quality fuel oil for your oil-fired furnace. High-quality oil burns more efficiently, allowing you to get more heat out of every gallon.
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