Discover how the heating boost works for tertiary and collective residential buildings

In the face of rising environmental concerns and the urgent need to reduce energy consumption, the Heating Boost for tertiary and collective residential buildings stands out as an essential lever. This financial aid aims to accelerate the transition to more efficient and sustainable heating systems, particularly for large spaces such as offices, schools, or residential buildings. Designed within the framework of Energy Savings Certificates (CEE), it offers a pragmatic and economically viable solution to modernize installations, improve energy efficiency, and significantly reduce the carbon footprint of buildings. More than just a simple subsidy, this program represents a major advancement in French energy policy, supporting the decarbonization of the collective and tertiary real estate sector while facilitating access to the most innovative solutions such as heat networks and heat pumps.

Detailed Operation of the Heating Boost for Tertiary and Collective Residential Buildings

The Heating Boost is aid derived from the Energy Savings Certificates (CEE) system, which engages energy suppliers to finance works to improve the energy efficiency of buildings. Since its merger in September 2022, this program has been extended to tertiary and collective residential buildings, simplifying and amplifying its impact. It particularly targets structures built for at least two years, thus excluding the newest buildings that already benefit from strict energy standards. The equipment primarily concerns the replacement of coal, oil, or conventional gas heating systems — reflecting a clear intention to eliminate polluting fossil energy sources. These systems are to be replaced with more virtuous solutions such as connection to a heat network predominantly powered by renewable energies, or the installation of effective heat pumps and biomass boilers.

The financial incentive can correspond to a bonus calculated according to several criteria: the size of the building, the type of equipment installed, and the volume of energy savings certificates generated. For example, the bonus is multiplicative based on the energy performance of the chosen equipment, with a coefficient of up to 4 to favor technologies with low carbon impact.

• Eligible buildings: Tertiary and collective residential buildings over two years old.
• Subsidized equipment: Air/water or water/water heat pumps, biomass boilers, connection to renewable heat networks.
• Obligation: Full removal of the old heating system under penalty of refusal of aid.
• Duration: Operations initiated from September 1, 2022, and completed by the end of 2027 at the latest.

The very notion of “building” was clarified by the decree of April 2025, which specifies that a building corresponds to an independent construction with external access and belonging to a distinct cadastral parcel. This precise definition avoids any ambiguous interpretation and allows for the correct assessment of installations for aid.

Impact of the Tertiary Decree on Buildings and Integration of the Heating Boost

Enacted in 2019, the tertiary decree imposes a strict obligation on tertiary-use buildings larger than 1000 m²: to reduce their final energy consumption by 40% by 2030, and up to 60% by 2050. This regulatory obligation comes with a platform officially managed by ADEME – OPERAT – to monitor energy consumption in real time. Beyond the aspect of sanctions, this regulation aims to hold owners and operators accountable by encouraging them to undertake energy renovation work.

For many tertiary actors, financial constraints have hindered commitment to this type of project. This is where the Heating Boost fully plays its role, offering economic support to modernize installations. The bonuses paid by energy suppliers, under the CEE framework, help to mitigate the often-high costs of investments for these large spaces. Moreover, this aid encourages the adoption of effective solutions such as innovative thermal energy or green heating through biomass.

Concrete example: a municipal school of 2,500 m² in Lyon was able to replace its old oil boiler with a collective heat pump, achieving a consumption reduction of around 45%. Thanks to the Heating Boost, the management center received a bonus equivalent to 35% of the total cost, thus facilitating the operation. In parallel, this project was part of a green eco-attitude, integrating an energy monitoring system to track performance optimization.

• Objectives of the decree: Reduce consumption with measured indicators.
• Financial support: Essential for motivating equipment changes.
• Valuation: Implementation of systems integrating sustainable air conditioning and technical building management (TBM).

The harmonious integration between legal obligations and financial aid creates a favorable framework for both public and private tertiary actors wishing to adopt a responsible and effective energy future.

Focus on Effective Solutions Funded by the Heating Boost

One of the specificities of the Heating Boost is to prioritize technologies that exploit renewable and reclaimed energies. Among the eligible equipment, we find:

• Air/water and water/water heat pumps: Efficient and suitable for large spaces, they provide optimal comfort with an excellent coefficient of performance (COP).
• Innovative biomass boilers: Using renewable fuels, these boilers significantly reduce greenhouse gas emissions.
• Connection to sustainable heat networks: With over 890 existing networks in metropolitan France, often coupled with biomass or geothermal power plants, this solution is widely favored for collective residential and tertiary use.

Each piece of equipment must also be installed according to best practices, with the complete removal of old boilers. This requirement reflects the concern for energy efficiency while avoiding the persistence of energy-consuming or polluting equipment in buildings.

Equipment	Eligibility	CEE Multiplier Coefficient	Particularities
Air/water heat pump	Tertiary and collective residential	3 to 4 depending on the target	Good balance of comfort/consumption
Water/water heat pump	Tertiary and collective residential	5	Very high energy performance
Collective biomass boiler	Tertiary and collective residential	3 to 4	Use of renewable and local resources
Connection to heat network	Tertiary and collective residential	Major flat rate bonus	Favors renewable or reclaimed energies (EnR&R)

These solutions reflect a strong ambition to gradually align industrial and residential practices with standards of eco-housing and sustainable air conditioning. They collectively contribute to making buildings more autonomous, comfortable, and less energy-consuming.

Practical Modalities, Eligibility Criteria, and Tips for Fully Benefiting from the Heating Boost

The Heating Boost prioritizes simplicity of use for owners and managers, notably by eliminating the requirement to engage a certified RGE company for these types of works in tertiary and collective settings. This is an important point as it facilitates access, especially for medium-sized structures.

Here is a summary of the main eligibility conditions and tips:

• Buildings: Tertiary or collective residential use, at least 2 years old.
• Old age: No connection to a heat network in the last 5 years.
• Installation: Complete replacement of the polluting equipment, full removal required.
• Justification: In case of technical or economic impossibility for connection to a network, justification must be provided to the network manager.
• Commitment: Work to be initiated between September 1, 2022, and April 10, 2025, with completion by the end of 2026, or between April 11, 2025, and the end of 2027.

Good planning allows for maximizing both energy and financial return on investment. For companies, collaboration with a specialized engineering firm and a qualified installer is strongly recommended to optimize technical choices and administrative procedures.

Criterion	Condition	Practical Advice
Eligible Building	Tertiary/residential collective use and + 2 years	Check the exact area and use on the cadastral document
Old Equipment	Coal, oil, gas (excluding condensation since 2022)	Plan for complete removal
Engagement Date	Since 01/09/2022	Meet deadlines extended to 31/12/2027
Justification in case of non-connection	Mandatory if local network is unavailable	Archive confirmation from the network manager

To deepen this information, professionals can rely on dedicated platforms such as CalculCEE or France Chaleur Urbaine. The energy performance of a building is improved not only by equipment but also by mastering gestures and raising awareness among occupants, an aspect often integrated into global energetic solutions.