We are putting in a new kitchen in our 1965 house. The roof is an old iron roof then desmateric tiles on top of that. We live in windy wellington on the top of a hill.
I have a Schweigen UM1170-9ST on order from harvey norman but we can cancel the order and change to a different product if required. We want a high rate extractor unit built into the cabinet (undermount) above a gas hob in a semi open kitchen.
Does anyone have experience with this brand of fan or other products. We want something with an external fan motor so it's more quiet. The cost for this unit is about ~$1650 + installation. In this unit the motor actually goes outside the house on the roof. Ideally you use about 5m of duct with a few turns in it between the kitchen duct and the outlet/motor so that the fan noise is significantly reduced.
Has anyone looked at comericial units instead? What kind of price are they?