The simple answer is 'yes'! Heating oil will typically freeze when the temperature drops to just under minus 9 degrees Celsius, when it begins to turn into a kind of gooey gel. When this happens it makes it very difficult for your heating oil to flow through your heating system, and unfortunately can cause damage. To find out more, read our blog which gives some tips on how to avoid your heating oil freezing, and how to keep your house warm in the winter months.