Select size of DUKA One device
Area: Up to 10 m2 per unit
Minimum wall thickness: 165 mm
Area: Up to 15 m2 per unit
Minimum wall thickness: 270 mm
Should I choose Ø100 mm or Ø160 mm unit?
When it comes to choosing between a Ø100 unit and a Ø160 unit, there are several factors to consider. Both options have their advantages and it depends on the specific situation and the needs of the individual.
Advantages of a Ø100 mm DUKA One unit
The Ø100 model is often sufficient, given the air flow in standard bathrooms. It may also be the simplest solution, particularly if you already have a hole measuring Ø100–Ø125 mm, as is often the case. This can make installation easier and more convenient, as there is no need to drill a new hole to fit a DUKA One. It also means that it can be a cost-effective solution and a good way to try out the product.
Advantages of a Ø160 mm DUKA One unit
On the other hand, the Ø160 model can be more effective in terms of heat recovery, ventilation, and indoor climate. However, this requires a hole of Ø170-Ø180 for the Ø160 model to fit correctly. But this also allows for greater heat recovery, which can lead to more efficient energy utilisation and thus potentially reduce heating costs. Furthermore, a larger hole can enable greater ventilation, which is crucial for maintaining a healthy and comfortable indoor climate. It therefore contributes more effectively to removing polluted air, moisture, and odours, as well as increasing the supply of fresh air, which is important for sleep quality, well-being, and productivity.
Is wall thickness crucial?
The Ø100 unit requires a minimum wall thickness of 165 mm and the Ø160 unit requires a minimum wall thickness of 270 mm.
The choice between Ø100 models and Ø160 models depends on your individual needs and priorities. If you already have a Ø100 mm hole and want a simple and cost-effective solution, it may make sense to continue with the same size. However, if you prioritise heat recovery, air exchange and indoor climate, the Ø160 models are a better option, although it may require drilling a new one or expanding to make a Ø160 mm installation.
If you are in doubt about what is the right solution for you, you are always welcome to contact us at mail@dukaventilation.dk and a technician will contact you with proper guidance.

