What type of tank is often used for residential heating oil?

Aboveground storage tanks (ASTs) are commonly used for residential heating oil due to several reasons. They are typically more accessible for both installation and maintenance compared to underground storage tanks (USTs), allowing homeowners to easily monitor the fuel levels and condition of the tank. ASTs are generally installed in a visible part of a property, which facilitates regular inspections for leaks and corrosion, ensuring safety and compliance with regulations.

Moreover, ASTs often have a lower initial cost and straightforward installation process compared to USTs, which can require more extensive excavation work and may involve more complex regulatory compliance. Additionally, the visibility of an AST can help in quickly identifying any issues, like leaks or damage, allowing for prompt action to be taken.

The other types of tanks mentioned, like underground tanks and portable fuel tanks, are either less suited for residential heating oil applications or serve different functions. For instance, portable fuel tanks are primarily used for temporary storage and transportation rather than permanent heating solutions. Combination storage tanks, while versatile, are not specifically recognized as the standard for residential heating oil. Therefore, the choice of using aboveground storage tanks aligns with common practices in residential heating oil use.