New York Low Pressure Boiler Certificate of Fitness (COF) Practice Test

What methods can be used for heating oil in storage tanks?

1. Gas burners

2. Coils using low pressure hot water or steam

3. Electricity only

4. Ambient temperature for heating

The correct answer is: Coils using low pressure hot water or steam

Using coils with low pressure hot water or steam is an effective method for heating oil in storage tanks. This approach involves circulating heated water or steam through coils that are submerged in the oil. The transfer of heat from the water or steam to the oil facilitates a gradual increase in the oil's temperature, making it less viscous and easier to pump, especially in colder conditions. This method is favored because it provides a consistent and controlled heating process without introducing combustion gases, which can be a concern with gas burners. The other methods have limitations that make them less viable for this application. For instance, using gas burners can create safety hazards associated with open flames and combustion byproducts. Electricity could theoretically be used for heating, but it may not be practical or as efficient for large volumes of oil compared to coil methods. Relying on ambient temperature lacks efficiency and effectiveness, particularly in colder climates where the oil needs to be actively heated to maintain suitable viscosity for handling. In summary, heating oil via coils with hot water or steam is a controlled, safe, and effective method for ensuring optimal oil flow.