UHRS150 - Uniduct ROOF ducting kit by Robinhood
The Robinhood Uniduct ROOF Ducting Kit - UHRS150 is suitable for situations where rangehoods can be ducted vertically to the outside through the roof cavity. (A qualified plumber or roofer is recommended for installation of the cowl to meet building standards.)
This kit uses 150mm diameter rigid ducting, but also contains adaptors to fit rangehoods with 125mm or rectangular outlet ports.
- 2 x 100cm lengths of 150mm diameter rigid galvanised steel ducting
- Galvanised steel roof outlet cowl to fit 150mm diameter ducting
- White flame retardant PVC rectangular to 150mm ducting adaptor
- White flame retardant PVC 125mm to 150mm ducting adaptor
- Roll of heat resistant duct tape (48mm x 5 metres)
Where does the dirty air go?
- Rangehoods are designed to remove steam, grease and odours from your kitchen to help keep you home healthy, hygienic and smelling sweet. Once this dirty air has entered the rangehood it can do one of two things:
- Exit to the outside through ducting that connects your rangehood to the exterior of your house. This is the preferred method of air removal.
- Recirculate through charcoal filters, which clean the air before it's returned to the kitchen. This type of air removal is generally only used when ducting isn't possible.
How does ducting work?
- Ducted rangehoods use aluminium filters to catch large particles of fat and grease before expelling steam and odours to the exterior of the house - either through the wall or roof. The filters are washable in the dishwasher and regular washing is important to ensure that they don't inhibit air movement.
- Ducting should be planned in the earliest stages of kitchen or house design. At the very latest, it should be planned before you choose your rangehood.
- When deciding where to locate your cook top and rangehood, remember that the shortest and most direct route to the air exit point will be the most efficient.
- Rigid components are more efficient than flexible and semi-rigid ducting, which cause some degree of air friction and turbulence.
- If flexible ducting must be used, keep it as taut and straight as possible.
- Don't discharge exhaust air into existing chimneys or flues that carry combustible products from other sources.
- A competent handyman or builder could install wall (rear) mounted ducting. Top mounted ducting should be installed by a qualified plumber or roofer, because waterproofing will be required.