Photo by e24 on Unsplash
Overview of Germany’s New Heating Regulations
Starting in 2026, Germany will implement new rules for heating systems under the newly introduced Gebäudemodernisierungsgesetz (Building Modernization Act), replacing the previous Gebäudeenergiegesetz (Building Energy Act). This law aims to accelerate the transition toward more energy-efficient and climate-friendly heating, with changes affecting both fossil fuel and renewable heating technologies. Notably, the prohibition on installing natural gas heating systems in new buildings will be lifted, but experts warn of high costs involved. At the same time, state subsidies for switching to heat pumps will be reduced compared to previous support schemes[Source 1][Seed Article].
Key Changes for Gas Heating and Heat Pumps
The new law reintroduces the possibility of installing natural gas heating in new buildings, a reversal from prior restrictions tied to climate goals. While this offers more options for consumers, higher long-term costs are expected because fossil fuel heating is subject to increasing CO2 pricing, which could translate into steeper expenses for users and tenants sharing heating costs. Meanwhile, the previous requirement that all new heating systems must operate with at least 65% renewable energy—such as heat pumps leveraging environmental heat—will be removed. This change provides greater technological flexibility but reduces the push for renewables in heating systems for existing buildings outside designated areas[Source 1][Source 3][Source 5].
What Expats and International Residents Should Know
For expats, foreign workers, and international students living in Germany, these new heating regulations may influence housing options and living expenses starting in 2026. Rental prices and utility bills could be affected, especially in multi-tenant buildings where landlords choose heating systems. If landlords install fossil-fuel heating, tenants could face higher ancillary costs due to CO2 levies, which tenants cannot refuse. Although warming subsidies remain, the reduction in state support for heat pumps means that switching to renewable heating may require higher upfront investment. New buildings will have more flexible heating system choices, but environmental targets remain in place for larger municipalities with over 100,000 residents[Source 1][Source 4][Seed Article].
Expat homeowners should note that while there is no immediate mandatory replacement of functioning heating systems, by 2045 all fossil-fuel heaters must be phased out unless run on biomass or hydrogen. Installation of new gas or oil heaters typically requires professional consultation and municipal heat plans may impose local rules mandating renewable energy integration. Eligible subsidies and financing options will continue through 2029, so planning upgrades with guidance on funding and local specifics is advisable[Source 6][Source 8].
Practical Steps and Deadlines
The new Building Modernization Act is expected to come into force by mid-2026, following final parliamentary approval and the transposition of the EU Building Directive. Until then, the 65% renewable heating rule currently applies in some areas, particularly large cities. Expats renting or buying property should monitor deadlines and municipal heat planning announcements to understand when stricter renewable heating requirements take effect. Moreover, contractors and landlords must abide by updated consultation and installation rules from January 2024, including advisories before installing fossil fuel heat systems. Staying informed about local regulations and available subsidies will be essential for managing heating costs and compliance[Source 1][Source 4][Source 6][Seed Article].
For more details, the original article from Tagesschau provides a full summary of these upcoming changes: https://www.tagesschau.de/wirtschaft/verbraucher/heizen-gebaeudemodernisierungsgesetz-foerderung-100.html.
