Fireplace Dampers are not acceptable in Kitchen Extract systems since they could become unserviceable with publicity to grease and turn into difficult to wash. You will find advantages and drawbacks to both equally round and rectangular ducts when it comes to cleansing. In general, rotary brushes are easier to use https://kitchenextractsystems03445.sharebyblog.com/27891178/an-unbiased-view-of-kitchen-extract-systems