Checklist: Best practices for planning decentralised ventilation systems

Decentralized ventilation systems are an effective solution for improving air quality in buildings and creating a healthy indoor climate. When planning these systems, it is important to consider proven best practices in order to achieve optimal results. In today’s blog post, we dive into the world of decentralized ventilation systems and give you valuable tips on how to successfully implement your project. From selecting the right system and finding the right location to maintenance and energy efficiency, we show you what is important for creating an efficient and functional ventilation system. Let’s discover together how you can optimize the indoor climate in buildings with the best practices for decentralized ventilation systems.

 

Planning and selecting the right ventilation system

The first step in implementing a decentralized ventilation system is careful planning. It is crucial to choose the right system that meets the specific requirements of the building and its use.

Consider room size and air exchange rate: The system’s performance must be tailored to the size of the room to ensure adequate air quality. A common rule of thumb for living spaces is an air exchange rate of 0.5 to 1 time per hour.

Analyze the type of building: Different types of buildings, such as single-family homes, apartment buildings, schools, or offices, have different ventilation requirements.

An individual concept must be developed for each building.

Heat recovery (HR): To minimize energy consumption, systems with integrated heat recovery should be preferred. Such systems extract heat from the exhaust air before it is discharged to the outside and use this energy to heat the fresh supply air. Decentralized ventilation units from Ventomaxx with heat recovery are available in the WRG RONDO, WRG PLUS, and WRG MAKANI® R / Q series. They stand for high-quality, decentralized ventilation comfort with extremely energy-efficient heat recovery and above-average protection against outside noise.

Sound insulation and aesthetics: Particular attention should be paid to sound insulation in residential areas. Modern decentralized ventilation systems have low-noise fans and are equipped with the highest level of sound insulation against outside noise. In addition, modern decentralized ventilation systems can be discreetly integrated into the building envelope.

When planning, also consider future developments and possible expansions. A flexible and modular ventilation system such as that from Ventomaxx allows adjustments to be made in the future without having to replace the entire system.

 

Correct placement and installation

The placement of the ventilation units plays a decisive role in the efficiency of the entire system. Incorrect placement can significantly impair the performance of the system.

Distribution of units: At least one ventilation unit should be installed in each room. In larger rooms, several units may be necessary to ensure even ventilation.

Note air inlets and outlets: The air inlets and outlets should be positioned so that there is no short-circuiting of the air flows. The supply air should be as far away from the exhaust air as possible so that the air can be distributed optimally throughout the room.

Avoidance of thermal bridges: When installing the units in the exterior wall, care must be taken to ensure that no thermal bridges are created. These could lead to energy losses and moisture damage.

Professional installation: To ensure that the system works efficiently, installation should be carried out by a specialist. Installation errors can lead to poor air circulation or increased operating costs.

Integration into the building energy concept

Decentralized ventilation systems should be considered as part of a building’s overall energy concept. Proper integration can significantly increase the energy efficiency of the building.

Combination with modern insulation: Good thermal insulation reduces a building’s heating requirements, while a decentralized ventilation system ensures a supply of fresh air. This combination ensures a comfortable indoor climate with minimal energy consumption.

Cooperation with heating systems: In energy-efficient buildings, ventilation should be operated in close coordination with the heating system. For example, ventilation systems with heat recovery can help to reduce heating requirements.

Holistic planning and integration of decentralized ventilation systems into the building’s energy concept not only maximizes the added energy value, but also increases the comfort and sustainability of the building. Well-thought-out integration of ventilation systems from the outset is therefore a decisive factor for the long-term success and efficiency of a construction project.

Maintenance and servicing of decentralized ventilation systems

A decentralized ventilation system requires regular maintenance to ensure that it continues to operate efficiently and hygienically. Dusty or dirty filters can negatively affect air quality and increase energy consumption.

Regular filter replacement: The filters in ventilation systems should be replaced at least twice a year to ensure a clean air supply. In areas with high air pollution or intensive use, more frequent replacement may be necessary.

Cleaning the ventilation ducts: To prevent dirt deposits and the spread of germs, the ventilation ducts should be cleaned regularly. The fan must also be checked to ensure that it is working smoothly.

Maintenance contract: It may be advisable to conclude a maintenance contract with the installer to ensure that the system is regularly checked and serviced. This can extend the service life of the system and avoid expensive repairs.

Monitoring performance: Ventomaxx ventilation systems have sensors that monitor air quality and indicate when a filter change or maintenance is necessary.

Energy efficiency and subsidies

Decentralized ventilation systems help improve the energy efficiency of a building, especially in combination with heat recovery technologies. Many countries have subsidy programs that support the installation of energy-efficient ventilation systems.

Funding and subsidies: In Germany, for example, the Kreditanstalt für Wiederaufbau (KfW) promotes energy-efficient renovations and new buildings. This also includes investments in decentralized ventilation systems. It is advisable to find out about funding opportunities at an early stage.

Building Energy Act (GEG): Ventilation systems must comply with legal requirements for energy consumption. The EnEV and the GEG specify the energy standards that must be met in new buildings and renovations. Decentralized ventilation systems with heat recovery help to meet these standards.

The combination of energy efficiency and government subsidies makes the use of decentralized ventilation systems not only ecologically sensible, but also economically attractive. By reducing energy costs and taking advantage of subsidies, builders can benefit from the advantages of these modern ventilation solutions in the long term while also contributing to climate protection.

Advantages and challenges

The use of decentralized ventilation systems offers a number of advantages for builders, architects, and residents. One of the main reasons for using such systems is their flexibility. Decentralized air supply in individual rooms allows residents to control and optimize air quality individually. This enables demand-based ventilation, which leads to greater well-being and improved indoor air quality.

Advantages

+ Energy efficiency through heat recovery.

+ Simpler and more cost-effective installation compared to central systems.

+ Improved air quality through continuous air exchange.

+ Flexible adaptation to the needs of individual rooms.

+ Reduced space requirements, as no large air ducts are necessary.

Challenges:

The placement of the devices must be carefully planned to avoid heat loss and air flow short circuits.

Regular maintenance is required to maintain efficiency.

Sound insulation must be taken into account.

At Ventomaxx, we are happy to assist you in the planning and implementation of your ventilation system, taking into account all the details mentioned in the article and beyond.

With over 20 years of experience, we offer you the right solution, regardless of whether it is a new building or a renovation. We guarantee you an optimal ventilation concept that is both functional and efficient. Trust our expertise to design a ventilation system that meets your requirements and offers long-term benefits for your building.

More exciting articles

When planning and installing decentralized ventilation systems, it is very important to have reliable information. A helpful resource is the article on fresh air supply in indoor spaces, which shows how modern new buildings can benefit from improved fresh air supply from decentralized ventilation systems.

The blog post “Filters for ventilation systems: Their key role in air quality and efficiency” is dedicated to these often overlooked yet crucial elements of a ventilation system. It explains the different types of filters and their importance for a healthy indoor climate.

Planning decentralized ventilation systems requires a careful approach to follow best practices. Our checklist is designed to make planning easier. With the right selection, installation, and integration of these systems, you can improve the energy efficiency of your building and ensure optimal air quality. Remember to position the systems correctly and maintain them regularly to keep them effective in the long term. You can also take advantage of subsidies to support implementation. Decentralized ventilation systems offer numerous advantages that pay off in the long term and contribute to a healthy and sustainable indoor climate.