Bastian Distler, a product manager in Ketsch in south-west Germany, was considering upgrading to a heat pump anyway for environmental reasons, but admits that he wouldn’t have been able to without the subsidy. Purchase and installation can cost anywhere from €10,000 to €30,000 (£8,700 to £26,000; $11,000 to $33,000) compared to around €7,000 for a new gas boiler.
