More people die because of the cold weather than traffic accidents every year in Wales.
That's according to the organisation Care & Repair Cymru.
It says the most vulnerable people are not getting access to schemes such as the winter fuel allowance.
The launch of the Fighting Fuel Poverty campaign aims to raise awareness about excess winter deaths and encourage people to use schemes available to them.
In 2012/13 there were almost 2,000 excess winter deaths in Wales. The majority occurred among those aged 75 and over. This simply isn’t good enough.
Many older people have difficult decisions to make about whether to heat their home or eat – the situation really is that bad for many older people across Wales.
Care & Repair Cymru is also urging better off pensioners who don’t need their winter fuel allowance to donate it to those who are in real need.
The campaign runs from the 20th-27th of October.
More top news
Most places will have clear spells but also some showers overnight, with some sleet and snow over high ground.
Much has been made of the so called 'Red Wall' in northern England, but Labour defeats in north east Wales were every bit as striking.
Adrian Masters reflects on the 2019 general election results and what they could mean for Wales.