How often should a heating oil tank be completely emptied and cleaned?

A heating oil tank should be completely emptied and cleaned every 3 to 5 years to ensure optimal operation and to maintain the quality of the heating oil. Over time, sludge and sediment can accumulate at the bottom of the tank, leading to potential issues such as clogging filters or fuel lines, which can affect the efficiency of the heating system. Regular maintenance not only helps in preventing these problems but also extends the life of the tank and related equipment.

By adhering to this timeframe, homeowners and operators can ensure that the tank is free from contaminants, thus maintaining a clean fuel supply for the heating system. This practice is particularly advisable in areas where tanks may be prone to corrosion or when there are concerns about water contamination, which can happen due to rainwater infiltration.