Identification

• An oil heating system vaporizes incoming filtered oil, which ignites within the oil burner. The burner creates hot air or steam from the oil fuel for heating distribution throughout a home.
  
  

Features

• Honeywell furnaces locate the oil fuel filter cartridge between the oil supply line and the burner. The oil filters through the cartridge before it reaches the vaporizing burner, preventing any foreign debris from entering the burner.
  
  

Considerations

• The fuel filter cartridge must be replaced before every heating season. Access the filter cartridge by removing the filter bowl and emptying the residual oil into a bucket. Inspect the filter bowl for any damage that could compromise the oil's purity. Place a new filter cartridge within the bowl and reattach to the furnace.