Fresh Air Chimneys
For negative or balanced pressure ventilation
Fresh air chimneys are well suited if fresh air supply via the side walls or intermediate ceiling is not possible or requested, and also if your barn is extremely wide and low. In times like this, good air circulation is not possible with only wall inlets. These are also a great option if negative or balanced pressure ventilation is desired (ie. for free-range egg production).
Important Advantages
- Stable pipe systems are coated and well insulated
- Long service life
- Easy cleaning
- Available with central and individual control
- Optional wire mesh guard to prevent birds and leaves getting into the barn
- Great fit for very wide barns with low ceiling
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FAC 2
For negative or balanced pressure ventilation
FAC 2 supplies fresh air from the roof with a high air rate. The fresh air distributor at the lower end of the chimney ensures that the entering air is distributed evenly inside the house. This creates a stable airflow even with minimum ventilation. As an option, FAC 2 can be equipped with a fan inside the chimney. This fan pushes the fresh air drawn in by the chimney through the fresh air distributor and into the house to create a balanced pressure system. Such a system is especially recommend where no negative pressure can be created due to constantly even pop holes. FAC 2 is available in four diameters (650, 730, 820, and 920 mm)
Fumus 2
For balanced pressure ventilation
Fumus 2 is always equipped with a fan in the lower part of the chimney. This fan pushes the fresh air drawn in by the chimney through the fresh air distributor and into the house. The amount of air entering the barn is regulated by means of a butterfly valve above the fan. Depending on the position of the butterfly valve, anywhere between 100 percent fresh air (vertical position) and 100 percent recirculating air (horizontal position) enter the barn. Between these positions, a certain amount of fresh air is mixed with the house air, which is drawn in through the 10 cm wide opening at the chimney. This means that, depending on the ventilation requirements, the barn can be supplied with fresh air, mixed air or recirculating air. In case of minimum ventilation (during cold weather) Fumus 2 can also be operated with balanced pressure or slight positive pressure. Fumus 2 is available with the following diameters: 650, 730, 820, 920mm.
Resources
View and download the latest fresh air supply systems product brochure.
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