Collective heating in apartment buildings: what co-owners need to know according to professional property manager Syncura

Do you live in a co-ownership with collective heating? Then you are partly dependent on how the system is managed, when it is started up, and how costs, rates, and energy consumption are distributed. At professional property management company Syncura, we notice that there are often questions regarding this. That is why we have listed the most important points of attention for you, focusing on comfort, regulations, and efficient energy consumption.

In Belgium, collective heating, whether gas or electric, is subject to various rules and recommendations. These aim to combine a pleasant indoor climate with responsible energy consumption and the correct application of legislation.

Temperature, seasons, and efficient use of heat

There is no legally established minimum temperature for buildings in Belgium, but it is recommended to keep the indoor temperature around 19°C. This maintains thermal comfort and limits energy consumption and heat loss. Furthermore, authorities and energy consultants recommend avoiding temperatures above 21°C to limit high tariff costs, energy consumption, and CO₂ emissions.

The heating period is also not legally defined. In practice, the heating is often switched on around mid-October and switched off around mid-April. However, this period may vary depending on the weather and the agreements within the co-ownership. The property manager, together with the installer, usually takes care of the commissioning, maintenance, and management of the installation to ensure that energy and heat usage remains optimal.

Who is the manager of the collective heating and what is their role?

The management of the collective heating lies with the property manager, who acts as the administrator of the system. Together with a certified installer, they ensure the maintenance of the central installation and the timely start-up of the heating for the winter.

Suppose a problem arises, such as a malfunction or insufficient heating; you can report this to the property manager. If necessary, the general meeting can be convened to discuss solutions or to adjust agreements regarding the operation of the system.

At Syncura, we ensure that maintenance is carried out correctly and on time, so that the continuity of the heating remains assured during the heating season.

How does collective heating work in an apartment building?

Collective heating originates from a central boiler room, usually located in the building's basement. One or more heat generators heat water that flows through pipes to the radiators or underfloor heating in the apartments.

An automatic control system adjusts the temperature to the outside temperature. This makes energy consumption more efficient without compromising on comfort. Maintenance of the system is carried out via a maintenance contract with specialized technicians, ensuring that defects can be resolved quickly and the system continues to operate efficiently.

In many buildings, heating and hot water are combined in a single central system. This simplifies management and ensures the continuous availability of hot water for all residents, resulting in better energy use and lower costs in the long term.

Gas, electricity, heat pump, or hybrid systems

Many Belgian buildings still use a central gas boiler, primarily due to its efficiency and relatively lower costs. However, this solution requires regular technical maintenance to guarantee safe operation.

In modern buildings, collective electric heating is sometimes chosen. That system is technically simpler to manage, but can be more expensive in terms of electricity tariffs and energy consumption.

Some co-ownerships opt for hybrid solutions and combine, for example, the gas boiler with a heat pump. This allows you to optimize energy consumption while simultaneously improving the sustainability and future of the building.

Collective underfloor heating is also gaining popularity. This system has the advantage of distributing heat evenly and is particularly suitable for large areas. It can be powered by either a collective gas boiler or an electric system, offering significant flexibility for the co-ownership and contributing to cooling and heat management.

What to do in the event of a breakdown or problem with collective heating?

An interruption to the collective heating can have various causes, such as a technical defect, a problem with the boiler, or a fault in the distribution network.

In the event of a breakdown of the collective heating or an insufficient temperature in your home, you have the right to report this to the building manager so that the necessary measures can be taken.

How are the costs divided?

Collective heating serves both your apartment and the common areas. The cost distribution follows clear rules.

In Belgium, it is mandatory to install individual meters or heat cost allocators whenever technically possible. This ensures that you pay according to your actual consumption, resulting in a fairer distribution. In older buildings where individual metering is not feasible, costs are often divided according to the shares in the co-ownership or via a global distribution key. This arrangement can be discussed and potentially adjusted during the general meeting.

Even if you heat economically, you contribute to the costs for the common areas and the building's overall heat loss.

In the event of a general breakdown, the co-ownership usually bears the costs. However, if the problem is limited to a private installation, such as a radiator or valve in your apartment, the repair may be at your expense.

Maintenance, energy audit, and sustainable energy use in the future

The property manager is responsible for the annual maintenance of the heating system, including boilers and any heat pumps. A well-maintained system prevents breakdowns and increases energy efficiency.

Do you want to structurally reduce the building's energy consumption? Then an energy audit can be useful. This provides insight into possible improvements, such as additional roof or facade insulation and the replacement of windows. Better insulation reduces heat loss and lowers heating costs for all co-owners.

Additionally, smart thermostats and thermostatic valves can help to better adjust the temperature to the occupancy of your home.

Regulations regarding collective heating within co-ownership

Legislation concerning heating in buildings sets rules to guarantee appropriate thermal comfort and to optimize the energy costs of co-owned properties. Knowledge of the obligations of the property manager, the possibilities for individualizing heating costs, and the control mechanisms enables better management of the collective heating system.

With customized systems and regular maintenance of the collective heating boiler, you can enjoy optimal thermal comfort while keeping costs under control.

Can you disconnect from collective heating?

Do you want to switch to an individual system? Then you need permission from the General Assembly, in accordance with the majorities stipulated in the Belgian Civil Code. Furthermore, a technical study is usually required to assess the impact on the central installation and on other apartments.

Even after an approved disconnection, you generally continue to pay a basic contribution for the heating of the common areas and for indirect heat (for example, via adjacent apartments). Your contribution to the common costs based on your shares in the co-ownership also remains in effect. The aim is to maintain the technical and financial balance of the system.

How do you know if you have collective or individual heating?

You can recognize collective heating by the presence of a central boiler and a shared distribution network in the building. If you have your own boiler in your apartment or standalone electric convectors, this concerns individual heating.

Your bill also provides clarity. With collective heating, the costs are included in your common charges. With individual heating, you have a direct contract with an energy supplier.

Do you have any further questions about collective heating?

Do you have questions, need help, or require additional information regarding management, system offerings, or the optimization of the collective heating in your co-ownership? Syncura is happy to support you with professional advice and well-thought-out technical management.

This way, you can count on comfort, transparency, a fair cost allocation, and sustainable energy use in your building.