A new regulation in France has changed the rules for homeowners who use gas and are planning major home renovations. Starting September 1st, the MaPrimeRénov’ program—which helps fund energy-related home improvements—now requires that any major renovation project include a shift away from fossil fuel-based heating systems. This change aligns with France’s broader climate goals, aiming to reduce greenhouse gas emissions by moving away from traditional heating sources like gas and oil. Previously, homeowners could still include a project to maintain or replace a gas boiler in their major renovation application. However, this is no longer allowed. Now, to qualify for the MaPrimeRénov’ subsidy, a renovation must include a decarbonized heating system, such as a heat pump or biomass boiler, which do not rely on fossil fuels. This means that any renovation plan that involves keeping or installing a new gas boiler will no longer be eligible for the major renovation version of the program. This shift reflects a government effort to reduce the country’s reliance on fossil fuels, especially in residential heating, which is a major source of emissions in the construction sector. For homeowners, the change means that even if they are planning a comprehensive renovation focused on insulation or ventilation, their project could be disqualified if it includes fossil fuel-based heating. However, there are viable alternatives that still qualify for financial aid. The heat pump, which can be powered by air or geothermal energy, is the most favored option for replacing gas boilers. Biomass boilers, which use wood or pellets, are also a solid alternative, especially in rural areas where these materials are more readily available. Before beginning a renovation, homeowners should ensure that their chosen contractor is certified by the RGE (Reconnu Garant de l'Environnement) program, which is required to access the financial aid. They should also request an updated energy audit that includes the new decarbonization requirements. Comparing multiple quotes is important, as the cost of installing a heat pump or biomass boiler can vary depending on the home’s specific needs. Additionally, installation delays are common, especially during peak demand periods. For those already planning a renovation with a gas boiler at its core, it's still possible to revise the project, provided they act quickly and consult a professional who can help with financing. This change encourages homeowners to rethink their long-term heating strategies and consider more sustainable solutions for their homes.