Why it’s important to keep your heating oil tank full at all times When using an oil tank to heat your home, it is important that you are always aware of the amount of oil in your tank. There is nothing worse than running out of oil on a chilly night and leaving your fa. Why it’s important to keep your heating oil tank full at all times When using an oil tank to heat your home, it is important that you are always aware of the amount of oil in your tank. There is nothing worse than running out of oil on a chilly night and leaving your fa