In England and Wales, the Free Boiler Scheme is available under initiatives like ECO4 and the Boiler Upgrade Scheme. Eligibility typically includes homeowners or private tenants with low income or those receiving certain government benefits. The property must usually have an Energy Performance Certificate (EPC) rating of D or lower. The scheme is aimed at replacing inefficient or broken boilers powered by gas, oil, or other fuels. Rural, off-gas-grid homes may qualify for biomass boiler support. New-builds and social housing are generally excluded. The goal is to improve energy efficiency, reduce heating costs, and support low-income or vulnerable households.