Hunt urged to commit extra £6bn a year to making UK homes energy efficient

Exclusive: Groups say chancellor needs to kickstart renewed drive to help cut bills and reduce emissions

A coalition of charities and campaigners have demanded the chancellor funnel more funds into making Britain's leaky housing stock energy efficient at next week's budget to help cut bills and protect the environment.

In a letter to Jeremy Hunt, more than 20 organisations asked the government to set aside at least 6bn a year over the next decade to support an acceleration in insulating home and installations of heat pumps.