Furnace oil is a Dark, viscous residual fuel oil which is obtained by blending residual products from refining processes with suitable diluent usually middle distillates to obtain the required fuel oil grades. These fuel oil grades are similar in nature and have been marketed under different specifications in various countries.

Uses of Furnace Oil are

  • As fuel for Power Generation in DG Sets
  • As fuel for Boilers/ Furnaces/ Air pre-heater/ Any other Heaters
  • Fuel for

Furnace oil is a class C product having Flash Point above 66 deg C. Since this is a residual fuel, there has to be gradual filtration system to prevent the filter choking and fuel nozzles choking. Due to its viscous nature, it has to be heated to improve its flow ability and to a proper temperature for proper atomization. Normally gear pumps are preferred to avoid cavitation problems.

Technical Specification

Sr. No.CHARACTERISTICSTEST METHODGRADE IGRADE IIUNIT
1AppearanceVisualBlackBlack
2Density 30°CIS : 1448 P : 160.92 – 0.950.97 – 1.0gm/ml.
3Flash PointIS : 1992 P : 69 65 – 70 90 – 110°C
4Flash PointIS : 1992 P : 69 65 – 70 90 – 110°C
5Pour PointIS : 1448 P : 1027 Max27 Max°C
6Water ContentIS : 1448 P : 40NilNilNil
7Sulfur CompoundsIS : 1448 P : 334.0 Max4.0 Max% by mass
8AshIS : 1448 P : 040.1 Max0.3 Max% by mass