Boiler Upgrade Scheme 2026: Who Qualifies for the £7,500 Heat Pump Grant? If you are considering replacing an old boiler or heating system with a heat pump, the Boiler Upgrade Scheme (BUS) could help reduce your upfront installation costs. In 2026, eligible property owners in England and Wales can receive a grant of £7,500 towards an eligible air-to-water, ground-source or...