What temperature must fuel oil #4 be heated to before usage?

Fuel oil #4 is commonly used in heating applications and has specific viscosity characteristics that are essential for proper combustion and effective operation of heating systems. To ensure that fuel oil #4 flows properly and can be atomized during combustion, it needs to be heated to a minimum temperature.

Heating fuel oil #4 to the proper temperature allows it to reduce in viscosity, making it easier to pump and spray, which is critical for efficient burning in burners or boilers. The correct temperature for heating fuel oil #4 before usage is 135 degrees Fahrenheit. At this temperature, the oil achieves a viscosity that is conducive to optimal performance, reducing the risk of issues like clogging or incomplete combustion.

By heating to this temperature, operators can ensure system reliability and efficiency, minimizing emissions and waste of fuel. This understanding of the temperature requirements is vital for anyone working with fuel oil systems.