More than 150 years of experience
Experts in flue gas and heat pumps
Ease of installation & speed
More than 2,000,000 homes supplied
Ventilation is indispensable for a healthy indoor climate, especially in well-insulated homes. Without controlled air exchange, polluted air, moisture, and CO₂ will continue to circulate in the home, leading to comfort and moisture problems. Burgerhout therefore thinks in terms of systems. From air distribution to ducts and outlets: everything connects. This ensures the airflows are correct, the system remains manageable, and the installer can rely on a solution that works in practice.
Homes are becoming increasingly well-insulated. This reduces energy consumption and increases comfort. At the same time, natural ventilation is severely limited. As a result, polluted air, moisture, and CO₂ remain in the home for longer.
Good ventilation is therefore not an afterthought, but a fixed part of the installation. It ensures a healthy indoor climate, helps prevent moisture and mould problems, and maintains comfort levels, without unnecessary energy loss.
During the design phase, it is important to distinguish between airing and ventilating. Airing is temporary: opening windows or doors. Ventilation occurs continuously and in a controlled manner via a system that supplies and removes air day and night. In well-insulated homes, continuous ventilation is essential to prevent condensation, mould growth, and excessively high CO₂ levels.
A well-thought-out ventilation system ensures correct airflow, a stable indoor climate, and that the home remains comfortable and healthy in the long term.
In well-insulated homes, a well-thought-out ventilation system is indispensable. Below you will find an overview of the most commonly used systems and their role in the total air pathway.
System A – Natural Ventilation
Air supply and exhaust occur naturally. Fresh air enters via grilles; exhaust takes place due to wind and temperature differences.
Simple system, but heavily reliant on weather conditions and user behaviour.
System B – Mechanical Feed
Fresh air is mechanically supplied by fans. Extraction occurs naturally.
Gives more control over the air supply, while the exhaust remains passive.
System C – Mechanical Drainage
Fresh air naturally enters via wall or window vents. Extraction is mechanical and takes place in wet areas such as the kitchen, bathroom, and toilet.
Widely used in residential construction: a clear system with targeted drainage where contamination occurs.
System D – Mechanical Ventilation with Heat Recovery
Supply and extraction are fully mechanical and synchronised. The heat from the extracted air is used to pre-heat the fresh outside air.
Limited heat loss and contributes to an energy-efficient installation.
Mechanical supply and exhaust with heat recovery. This system completely renews the air in a controlled manner and reuses heat from the exhausted air. This ensures a comfortable and energy-efficient indoor climate. System D is suitable for well-insulated new builds and renovations where there is sufficient space for ducts and components.
Good ventilation is not only important for comfort and health, but is also legally stipulated. The Building Decree specifies the minimum amount of fresh air that must be supplied and extracted in homes. In practice, it is often necessary to ventilate above these minimum requirements to prevent moisture problems and a poor indoor climate.
What Burgerhout offers:
Products that meet the standards: All our ventilation systems, ducts and penetrations have been tested and certified in accordance with current European and national regulations.
Installation ease with certainty: Hybalans and EasyAir solutions are designed to help installers comply with regulations while maintaining an overview of the ductwork. This reduces the chance of errors and makes correct application simpler.
To make the design, selection and installation of the correct flue gas system as straightforward as possible, Burgerhout supports installers and consultants with practical tools. Information that is directly applicable in every phase of the project.
With years of experience in ventilation, Burgerhout helps installers, consultants and clients realise installations that are correct. We combine safety, systems thinking and ease of installation into solutions that work reliably in practice and align with the way professionals work.
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