The diffuser enables the exhaust air to flow out without loss, resulting in an increase in the air flow of up to 15%. This means an energy saving of up to 15%.
- Improved air mixture with the outside air
- Any penetrating rainwater is drained out between the diffuser and exhaust air duct
- DLG-tested system (DLG test report 4895)
Colours: Light grey, brown
The diffuser can be used in combination with a cover flap, which closes the chimney when the fan is not running. Alternatively, a rain hood can be used as a chimney closure.
DLG test report Download