As temperatures drop, heating costs rise, but there is some help for many households through cold weather payments.
This financial help is triggered across hundreds of postcodes in England, Wales and Northern Ireland when there is a prolonged period of below-zero temperatures.
In Scotland, those on low incomes and benefits may receive a separate winter heating payment, which does not depend on how cold it gets.
The cold weather payment is a government benefit top-up to help with fuel bills, external.
The average temperature in a local area must be recorded as, or forecast to be, 0C or below for seven days in a row.