Re: gaggenau downdraft system
The noise level is largely down to the installation. Is the fan unit to be mounted in or outside of the house?
The vent hose run has a major effect on noise and performance.
The shorter and straighter hose the better.
Maybe you could hear one at a dealers first?
If installed correctly these appliances are excellent and give very few problems.
I tend to find the downdraft works much betters than the VL 051 swing out type.