Ventilation unit: Helpers in the background for fresh air
It's hard to imagine modern buildings without a ventilation system. It keeps the indoor air clean and fresh without you having to do it yourself. Manual ventilation through open windows or even doors is almost a thing of the past with a ventilation system.
What can a ventilation system do?
The ventilation system usually consists of one or more ventilation units that ensure the exchange of air in rooms and entire buildings. The various devices in a ventilation system work as a team. For example, it is possible to take into account the different usage frequencies of the various rooms and automatically ventilate the frequently used study much more intensively than the rarely used guest room.
A ventilation system is available in various designs. It can be controlled centrally or decentrally, equipped with heat recovery or sometimes even replace the heating system. But no matter which version you choose: thanks to the ventilation system, you not only always breathe in fresh, but also filtered outside air. This is because before the ventilation units release the air from outside into the interior, it is passed through various filters. Pollen and pollutants must therefore remain outside.
Where is a ventilation system particularly useful?
A ventilation system ensures an all-round healthy indoor climate through regular and needs-based ventilation. This is not only extremely good for us humans, but also for the walls, as mold is a thing of the past with a well-coordinated ventilation system.
In new buildings and particularly energy-efficient houses, the ventilation system is not just an option, but a must! This is because new buildings lack cracks and leaks in the masonry, which means that "automatic" ventilation is not possible. The ventilation system takes over this task. With its constant work, it keeps the air fresh at all times and prevents the formation of moisture in room corners and behind cupboards.
Central ventilation system vs. decentralized ventilation system
When it comes to the controlled ventilation of living, working and utility rooms, there are two main types - centralized and decentralized room ventilation. The function of both types of ventilation is to remove low-oxygen air with a high carbon dioxide and water vapor content and to draw oxygen-rich fresh air into the rooms. The main difference lies in the way they work.
Central ventilation system:
In centralized systems, a single unit supplies fresh air to all rooms. The central unit, consisting of a ventilation unit and fans, is installed in the wall or ceiling and connected to the various rooms via a connected air distribution system.
The integrated ventilation unit draws in the fresh outside air and feeds it into the living room, children's room and bedroom via a heat exchanger. At the same time, the warm exhaust air from the kitchen, bathroom and WC is drawn into the unit and also fed through the heat exchanger. In this way, the heat from the exhaust air is transferred to the supply air, resulting in effective recovery. The cold exhaust air is led outside via exhaust air ducts.
The main advantages of central ventilation are its high air volume flow, low noise level and easy maintenance. As the planning effort is somewhat higher, they are mainly used in new buildings. However, they can also be integrated into old buildings in the course of modernization.
Decentralized ventilation system:
Decentralized ventilation systems are installed specifically in individual rooms. They are not normally connected to an air duct system and are installed directly in the outer wall. There are three basic types - ventilation units with heat recovery, exhaust fans and hybrid systems.
A ventilation system with heat recovery has a heat exchanger. This transfers the heat from the exhaust air to the incoming outside air. Its efficient operation allows up to 90 percent of the heat to be recovered.
Exhaust air systems are mainly used in bathrooms, kitchens, utility rooms and other functional rooms. Here, a fan transports the used air either directly to the outside or via exhaust air ducts, with fresh air being fed in. At LUNOS, they are also available as hybrid systems with heat recovery.
Decentralized ventilation systems offer the advantage that they can be retrofitted with comparatively little effort. This makes them particularly suitable for older buildings - both apartments and detached houses.
Discover the ventilation systems from LUNOS now
At LUNOS, we offer a large selection of high-quality ventilation systems for every need. Our product range includes decentralized ventilation systems with and without heat recovery, exhaust air fans, façade elements and much more. If you have any questions, we will be happy to assist you with our expertise and experience.
- The ventilation system with heat recovery saves considerable heating energy and thus reduces energy costs.
- Over the lifetime of the ventilation system, you can often save more money than you spent on the purchase.
- You always enter a home with a fresh indoor climate, regardless of the length of absence or ventilation behavior.
- The temperature and ventilation intensity can be controlled individually for each room.
- The ability to keep windows closed reduces the risk of burglary.
- Closed windows reduce noise pollution, especially in noisy environments such as busy roads or near traffic junctions.
- Demand-oriented and automatic ventilation prevents mold growth and moisture damage.
- Pollutants are quickly expelled to the outside and new pollutants are not even let in, resulting in healthier indoor air.
- A pleasant indoor climate is ensured by continuous ventilation, which increases living comfort.
- The filters in the ventilation system trap pollen and other allergens, which benefits allergy sufferers.
- Centralized systems in particular are often easy to maintain, which saves time and money in the long term.
- Decentralized ventilation systems can be retrofitted with comparatively little effort.
- The ventilation intensity can be increased in heavily used rooms and reduced in less used rooms.
- Decentralized ventilation systems are particularly suitable for old buildings in which no central system can be installed.
- Modern ventilation systems can recover up to 90 % of the heat from the exhaust air.
- When used in kitchens or bathrooms, the air is specifically freed from odors and moisture.
- Modern ventilation systems are often equipped with intelligent control systems that can be adapted to future needs and technologies.
- A good indoor climate and modern ventilation systems can increase the value of the property, especially when selling or renting.
1. Why is a ventilation system important for a modern home?
A ventilation system ensures continuous air exchange and thus improves the air quality in a building. It helps to remove pollutants, moisture and unpleasant odors, resulting in a healthier indoor climate.
2. What is the difference between centralized and decentralized ventilation systems?
Central ventilation systems serve all rooms in a building via a network of air ducts, while decentralized ventilation systems ventilate individual rooms.Decentralized systems are particularly flexible and are suitable for retrofitting in existing buildings.
3. What are the benefits of a ventilation system with heat recovery?
A ventilation system with heat recovery uses the heat from the exhaust air to preheat the supply air. This reduces the heating requirement and saves energy costs, as up to 90 % of the heat can be recovered.
4. How do filters work in a ventilation system?
Filters in ventilation systems clean the incoming outside air of pollen, dust and other pollutants before it enters the living spaces. This contributes to better air quality and a healthier indoor climate.
5. How loud are modern ventilation systems?
Modern ventilation systems are generally very quiet. The volume depends on the type of system and the installation. Manufacturer information on the decibel figure can help you select particularly quiet models.
6. Can a ventilation system help to reduce energy costs?
Yes, systems with heat recovery in particular can reduce energy costs by recovering heat from the exhaust air and reducing the load on the heating system. Automatic control can also optimize energy consumption.
7. How is a ventilation system maintained?
Maintenance includes regular cleaning or replacement of the filters, checking the ventilation openings for blockages and inspecting the ventilation units for proper functioning. Annual maintenance by specialist personnel is recommended.
8. What factors influence the selection of the right ventilation system for my home?
The choice depends on the size of the building, the number of rooms, the ventilation requirements and the energy efficiency requirements. Professional advice can help you choose the right system.
9. Are smart ventilation systems available and what advantages do they offer?
Yes, many modern ventilation systems are smart and offer functions such as remote control, programming of schedules and integration into smart home systems. This enables flexible and efficient ventilation control.
10. How can a ventilation system help prevent mold?
A ventilation system ensures continuous and needs-based ventilation that effectively removes moisture and thus prevents the conditions for mold growth. Regular ventilation through the system keeps the humidity constantly low.
