Students at Thomas Cowley High School, Donington, have been given an unplanned extension to their Christmas and New Year break today.
Heating problems have forced senior staff at the school to cancel lessons for today, meaning about 650 students will start the spring term tomorrow instead.
Headteacher Martyn Taylor said: “Unfortunately, both main pumps malfunctioned and the main part of the school was without heating. “As we had just had the four coldest days of the winter so far, the classrooms were very cold and I could not guarantee that we could heat the school to an acceptable temperature.
“So reluctantly I had to close the school, despite the fact that it took all day yesterday for the problem to be resolved so that the school could be heated up today, ready for a start tomorrow.
“My thanks go to the parents for their understanding and patience, with apologies for all the inconvenience caused.”