People have up to 12 weeks after receiving their voucher to have the work done and claim the GBP400 off the cost of installation of a new boiler or a renewable heating system like a biomass boiler or a heat pump, Department of Energy and Climate Change (DECC) said.

Over the past two months, all the energy companies including British Gas, E.On, npower and Scottish & Southern, which sell and install boilers have matched the government’s offer, giving householders potentially a total of GBP800 off the cost of a new boiler and some boiler manufacturers are also offering deals.

Recently published figures showed that, as at 16th March, 118,785 vouchers had been allocated and 35,390 boilers had been installed. This data will be updated on a monthly basis on the Energy Saving Trust website. The full allocation of 125,000 vouchers has now been reached.

People can save up to GBP235 per year by replacing their old boiler with a new energy efficient model, and doing their bit for the environment.

Lord Hunt, energy and climate change minister of the UK, has welcomed the massive take up of the government’s boiler scrappage scheme, with all the vouchers available having now been allocated to householders across England. The scheme is now closed to new applications.

Mr Hunt, said: “The scheme’s been a great success and is already helping people cut down on their fuel bills. An ‘A-rated’ energy efficient boiler can help save around GBP200 a year off fuel bills and reduce emissions.

“The scheme has also provided a much needed boost to England’s plumbers and boiler manufacturers, helping to sustain work for the 130,000 installers and up to 25 UK-based boiler manufacturers throughout the economic recovery.

“As a result of the scrappage scheme, we’ve seen other companies backing the scheme and giving their own discounts as well.”