German Heating Law (GEG) 2026: What Applies Now
The 65% rule remains in effect. Stricter noise regulations for heat pumps. GEG reform planned for spring 2026.All deadlines, changes, and subsidies at a glance.
Key Points at a Glance:
- 65% renewable energy for new heating systems remains mandatory
- Stricter noise regulations for heat pump outdoor units
- Municipal heat planning: Deadline June 30, 2026 for large cities
- GEG reform expected in spring 2026
- Subsidies up to 70% still available
The German Heating Law (GEG) remains the central regulatory framework for climate-friendly heating in Germany in 2026. After two years in effect, new requirements are now being added: stricter noise regulations for heat pumps, approaching deadlines for municipal heat planning, and a planned GEG reform. Here you will learn what is changing and what you need to know as a homeowner.
Important Deadlines 2026
Spring 2026
GEG reform planned - Law to become more technology-neutral and flexible
June 30, 2026
Municipal heat planning: Deadline for cities with over 100,000 inhabitants
June 30, 2028
Municipal heat planning: Deadline for smaller municipalities under 100,000 inhabitants
December 31, 2044
End date for fossil heating - from 2045 only renewable energy allowed
The 65% Rule Explained
New heating systems must source at least 65% of their energy from renewable sources.
Applies since 2024 for:
- New buildings in new development areas
For existing buildings:
- Depends on municipal heat planning
- Large cities: From June 30, 2026
- Smaller towns: From June 30, 2028
Heat Pump
Meets 65% requirement
District Heating
Meets 65% requirement
Solar Thermal
Possible in combination
New Noise Regulations for Heat Pumps
From 2026, stricter requirements apply to heat pump outdoor units. The new rules are designed to prevent conflicts with neighbors.
Distance Requirements
- Minimum distance from property boundary
- Special rules for row house areas
- Placement preferably not on bedroom side
Decibel Limits
Values measured at the immission point (e.g., neighbor's window)
Gas and Oil Heating: What Applies in 2026?
Existing Heating Systems
Functioning gas and oil heating systems may continue to operate. Repairs are allowed. Only boilers older than 30 years (constant temperature boilers) must be replaced.
New Gas/Oil Heating Systems
After the transition periods expire (depending on municipality 2026 or 2028), newly installed gas and oil heaters must also meet the 65% rule. This is only possible with biogas/heating oil blending or hybrid solutions.
Ban on Fossil Heating from 2045
From January 1, 2045, no heating systems may be operated with fossil fuels. All buildings must be converted by then.
Subsidies 2026 (BEG)
The Federal Subsidy for Efficient Buildings (BEG) remains available in 2026. The subsidies can be combined:
Base Subsidy
Basic rate for heat pump conversion
Climate Speed Bonus
For replacing oil/gas/coal heating
Bonus decreases from 2028
Income Bonus
For households with max. 40,000 EUR annual income
Efficiency Bonus
Natural refrigerant or ground/water heat
Maximum combined subsidy:
70%
of eligible costs (max. 30,000 EUR)
Note: The climate speed bonus decreases gradually. Those who act early benefit from higher subsidies. From 2028, the bonus will only be 17%.
Frequently Asked Questions (FAQ)
Do I have to replace my gas heating in 2026?
No, functioning gas heating systems may continue to operate. A replacement requirement only applies to constant temperature boilers older than 30 years. Only when you install a new heating system must it meet the 65% rule.
What is municipal heat planning?
Municipal heat planning determines which heating solutions are sensible in which areas. It shows where district heating will be expanded and where individual solutions like heat pumps are recommended. The 65% rules for existing buildings only apply after the plan is in place.
How loud can a heat pump be?
Maximum 50 dB(A) during the day, maximum 35 dB(A) at night, measured at the immission point (e.g., neighbor's window). Modern heat pumps with sound insulation usually meet these values without problems.
What changes will the GEG reform in 2026 bring?
The planned reform is intended to make the law more technology-neutral and flexible. Details are still open. The basic 65% requirement and the deadlines for municipal heat planning are expected to remain in place.
Is it still worth switching heating systems in 2026?
Yes, 2026 is particularly worthwhile for switching: subsidies are still high (up to 70%), the climate speed bonus decreases from 2028. Additionally, CO2 prices for fossil fuels continue to rise.
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