As A substitute, the government will encourage persons to exchange their boilers with greener solutions, particularly warmth pumps and biomass boilers. The overall funding pool accessible for the ECO4 scheme is £4 billion, and the amount of funding for people will fluctuate according to numerous things (see even further aspects https://eco4grants.fashion.blog/2025/07/20/home-energy-scotland-grant-free-insulation-what-you-need-to-know/