Duct fans

Duct fans - a key element of effective ventilation

Duct fans are an essential component of modern ventilation systems.   Their main task is to effectively pump air into ventilation ducts. They ensure proper air circulation in various types of buildings. They are irreplaceable in residential, office or industrial facilities.

Our offer includes a wide selection of duct fans. Models with different parameters and applications are available. We often come across questions about selecting the right fan. It is crucial to take into account the specifics of a given installation. Factors such as efficiency, pressure and noise level are important.

Types of duct fans available at Onninen

Our offer includes various types of duct fans. Models are available for round and rectangular ducts. The range includes single-phase and three-phase fans. We offer devices with different diameters, from small 100 mm to large 500 mm and more.

Single-phase duct fans work great in smaller installations.   They are ideal for single-family homes or small offices. Three-phase models are perfect for larger facilities. They provide high efficiency in industrial or commercial buildings.

Our assortment includes renowned brands such as Venture Industries, Awenta and Rosenberg. We also offer our own brands, including Onnline. They guarantee high quality at an affordable price.

Selection criteria for duct fans

When selecting the right duct fan, there are several key parameters to consider:

• Efficiency - determines the amount of air pumped per unit of time
• Compression - indicates the ability to overcome the resistance of the installation
• Noise level - important especially in residential buildings
• Channel diameter - must be matched to the existing installation
• Energy class - affects operating costs

Our experience shows that the correct selection of the fan is crucial for the efficiency of the entire system.   An improperly selected fan may not provide adequate air exchange. It may also generate excessive noise or use too much energy.

In our daily practice, we often encounter situations when a client needs help with selection. Recently, we advised on the issue of fans for a large office building project. The key was to ensure quiet operation while maintaining high efficiency. Ultimately, 315 mm diameter duct fans with a built-in silencer were used.

Practical applications of duct fans

Duct fans are widely used in various types of buildings. In residential construction, they are often used in bathrooms or kitchens. They provide effective removal of moisture and unpleasant odors. In offices, they ensure a constant supply of fresh air, improving work comfort.

In industrial facilities, duct fans play a key role in ventilation systems.   They remove polluted air from production halls. They also ensure the right temperature in rooms with machines. In warehouses, they ensure proper air circulation, preventing the formation of mold.

An interesting example of application is underground car parks. Here, duct fans must meet special requirements. It is necessary to remove exhaust fumes and ensure adequate air exchange. In such cases, fans with increased resistance to high temperatures are used.

In the case of office reorganization, it is most often necessary to modify the ventilation system. This often involves replacing or adding new duct fans. It is important to adapt the devices to the new layout of the rooms. Changes in the number of employees or the purpose of individual zones must be taken into account.

Duct fans also play an important role in commercial facilities. In shops or shopping malls, they provide comfortable conditions for customers. They remove excess heat and moisture, especially during periods of increased traffic. In restaurants and industrial kitchens, they are essential for removing fumes and odors.

Onninen recommends the use of duct fans with speed control.   This allows you to adjust the performance to current needs. This is especially useful in facilities with variable loads. Examples include conference rooms or auditoriums. In such places, you can increase the ventilation performance during meetings.

Many customers ask us about energy saving options. In this context, it is worth mentioning fans with EC motors. They are characterized by high efficiency and low energy consumption. They are an ideal solution for facilities where the ventilation system works for a long time.

In our daily practice, we see a growing interest in intelligent control systems. Duct fans can be connected to air quality sensors. This allows for automatic adjustment of performance to actual needs. This is particularly useful in office buildings or schools.

It is also worth mentioning the acoustic aspect. In facilities such as hotels or hospitals, quiet operation is key. We offer duct fans equipped with special silencers. They provide effective ventilation with a minimal noise level.

Our experience shows that properly selected and installed duct fans significantly improve the comfort of using buildings.   They have a positive impact on the well-being and productivity of people staying in the rooms. At the same time, they contribute to reducing operating costs through effective energy management.

We invite you to contact our specialists. They will help you choose the optimal ventilation solutions for each type of facility. Thanks to a wide range of products and professional advice, we provide comprehensive ventilation project support.