Exclusive: Chancellor hopes to save up to £170 from average bill but industry insiders say move would be ‘disastrous’

Critics believe cut would mostly benefit better-off people with larger homes and increase carbon emissions

The chancellor is rolling the pitch for a difficult Budget as economists predict tax rises on 26 November.

Exclusive: Chancellor hopes to save up to £170 from average bill but industry insiders say move would be ‘disastrous’

The chancellor appears to believe voters will forgive a broken promise in return for meaningful investment