A new survey has suggested more than a third of the UK population are concerned about their heating bills.
The BBC Radio 5 live survey showed a further quarter of those questioned said they had endured "unacceptably cold" homes over the past year as they struggled to pay for their energy bills.
Almost two-thirds (63%) of the 1,035 people surveyed also admitted they had cut down on energy use due to the increasing cost of their bills. A further three-quarters said they believed the UK's energy costs were too high.
In total, 38% of those surveyed said they were worried about how they would find the money in order for them to pay their heating bills.
Discussing the findings, shadow energy secretary, Caroline Flint, said: "This is yet more evidence that David Cameron's failure to get tough with the energy giants has pushed millions of vulnerable households even deeper into fuel poverty.
"It is a disgrace that this government has cut help for people in fuel poverty at the same time as giving millionaires a tax cut."
Energy secretary, Ed Davey, hit back at Flint's claims however, putting the blame on Labours failure to invest in energy when they were in power.
He said: "With our emphasis on competition, on helping vulnerable consumers directly and with our energy efficiency policies, the coalition is delivering in difficult times for people, when Labour failed to deliver in easy times."
To help households get more energy-efficient, and subsequently save money on their energy bills, the government brought in its Green Deal initiative in January.
Under the scheme, energy consumers can seek loans on things such as a new boiler or wall insulation - under the guarantee they will only pay an amount of money back in conjunction with how much their home will save by installing the measures.
The survey was conducted by ComRes via telephone interviews between August 30 and September 1, 2013.
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