The challenge in rangehood design has been to generate as much consistent extraction power, as quietly and efficiently as possible.
To achieve this, Schweigen started by sourcing the quietest and most powerful domestic extraction fan available, and integrated the German-made, centrifugal fan technology into a Schweigen-designed motor system called the Isodrive®.
However, even the quietest internal motor and fan generates noise. So having it vibrate noisily inside a rangehood canopy didn’t make sense. Neither did suspending it within the canopy – since that meant that the design of its internal structure would be driven by the need to support weight, rather than the need to eliminate noise.
This is why Schweigen silent rangehoods have their Isodrive® motors installed externally of homes through the roof, wall or eave with acoustically-matched, right-sized flexible ducting.
Without an internal motor, canopies are lighter and designed for optimal airflow and filtration. Kitchen exhaust is vented into the atmosphere, and fan noise is lost in the ambient surroundings. The only resulting sound in the kitchen is the airflow being pulled through the filters and ducting.
Most importantly, this air extraction is done in one seamless energy-efficient pull from the Isodrive® outside the home – unlike traditional internally-motored rangehoods that need to work twice as hard to first pull air into the canopy and then push it through ducting to the outdoors, introducing air turbulence and noise as it does so.
For more information visit schweigen.com.au/
