Home ventilation
Whether centralized in new buildings or decentralized in existing buildings – controlled ventilation ensures a comfortable indoor climate, protects health and extends the life of the building fabric. As an innovative world market leader, LUNOS offers a comprehensive range of highly effective decentralized and centralized ventilation solutions for any room and provides comprehensive advice on all questions.
Uncontrolled vs. controlled home ventilation
Uncontrolled home ventilation:
Uncontrolled home ventilation includes ventilation via open windows, joints and ventilation shafts. There is no support from technical aids. Air is exchanged solely by the wind and thermal buoyancy.
The main disadvantages of this form of ventilation are that heat is released with the stale air, the ventilation volume is difficult to control depending on the weather conditions and opening the windows is often out of the question in noisy or humid conditions, for example.
Controlled home ventilation:
Modern buildings are being built ever more densely. Accordingly, the number of openings through which natural ventilation can take place is decreasing. This in turn leads to an increase in the proportion of stale, oxygen-poor air with an increased carbon dioxide and water vapor content. Typical consequences are an impairment of mental and physical well-being, an increased risk of allergies and damage to the building fabric due to mold. These risks can be countered with effective, controlled ventilation.
Controlled home ventilation uses technical aids such as supply and exhaust air systems. Their importance is increasing, primarily due to the Building Energy Act (GEG), which came into force on November 1, 2020 and requires buildings to be permanently airtight. This requirement rules out many forms of uncontrolled joint ventilation from the outset. In turn, technical lhome ventilation systems are implemented in centralized and decentralized form.
Central vs. decentral home ventilation
Central home ventilation:
With central ventilation systems, fresh air is supplied to all rooms via a single device. This central unit consisting of a ventilation unit and fans is installed in the wall or ceiling and connects to the individual rooms via a connected air distribution system.
The ventilation unit draws in fresh outside air and directs it via the integrated heat exchanger to the supply air rooms (living room, children's room and bedroom), while the warm exhaust air from the exhaust air rooms (kitchen, bathroom, WC) is drawn into the unit and also directed via the heat exchanger. This transfers the heat from the exhaust air to the supply air and thus recovers it. The cold exhaust air is removed to the outside via exhaust air ducts.
The main advantages of this technology are its high air flow rate, low noise level and easy maintenance. Due to their comparatively high planning costs, they are mainly installed in new buildings. However, they can also be used in old buildings as part of modernization projects.
Decentral home ventilation:
Decentralized domestic ventilation is characterized by the fact that it can be installed specifically in individual rooms. As a rule, it does not have an air duct system. It is installed directly in the outer wall. There are three types depending on how they work – systems with heat recovery, for exhaust air and hybrid ventilation.
Fans in the first category are equipped with a heat exchanger that transfers the heat from the exhaust air to the incoming outside air. Thanks to their efficient operation, up to 90 percent of the heat can be recovered.
Exhaust air systems are mainly used in functional rooms such as bathrooms, kitchens and utility rooms. They use a fan to transport the used humid air either directly to the outside or via exhaust air ducts, while fresh air is fed in. At LUNOS, they are also available as hybrid systems with heat recovery. As decentralized ventilation systems can also be retrofitted with little effort, they are also very suitable for older buildings.
Our fans for living rooms and bedrooms
For living rooms and bedrooms, for example, we offer the e²60, which is one of the smallest decentralized ventilators with heat recovery on the market. Its pressure-optimized design ensures a constant volume flow even in areas with high back pressures such as high altitudes or coastal areas. In addition, with a standard sound level difference of up to 67 dB, it offers the best values in terms of sound insulation. Find out what else the e²60 can do here.
Our fans for bathroom and WC
For bathrooms and toilets, we recommend our Silvento ec model, among others. This exhaust air device works very efficiently and can be operated with very low volume flows. By selecting different control boards, the ventilation unit can also be adapted to different requirements. And the Silvento ec can do even more. Further information on the Silvento ec can be found here.
Our models in the ego series are also ideal for ventilation in bathrooms and toilets. The ego ventilators ensure the highest air quality with heat recovery and are among the smallest ventilation units on the market in their segment. You can find out more about the ego family here.
Discover the LUNOS product range
LUNOS offers a wide range of different ventilation systems for controlled home ventilation. Our product portfolio includes decentralized systems with and without heat recovery, central ventilation technology, exhaust air fans, façade elements and all associated components and controls. LUNOS is the expert for home ventilation of all kinds. We are happy to provide comprehensive advice and recommend the ventilation solution that best suits your needs. Click here to find the right representative in your region.