More than 11.6 million pensioners will receive the Winter Fuel Payment over the next two months.
This year’s payments have been boosted by an extra £300 per household Pensioner Cost of Living payment.
The vast majority of payments will be automatic, and anyone who has not received theirs by 13 January should contact the government’s Winter Fuel Payment Centre.
Work and Pensions Secretary Mel Stride told Sky News’ Kay Burley it was “a core mission of this government to make sure we support people as best we can if they are vulnerable or less well off”.