How can I make sure my cooker hood is working optimally?
One important function of the cooker hood is removing cooking fumes and odours as efficiently as possible. For optimum functioning, it is important to remember the following when installing the cooker hood:
When using a circular outlet duct:
- Use smooth, non-inflammable ducts with an internal diameter equal to the external diameter of the outlet connector on the cooker hood. The cooker hood requires an outlet duct measuring Ø150 mm. Extend flexible ducts to the maximum and cut them to size.
- Do not reduce the outlet diameter. This will reduce the capacity and increase the noise level.
- When connecting to a short outlet duct it may be preferable to fit a non-return valve in the duct to prevent draughts.
- Use a hose clip or aluminium tape for an airtight seal.
- When passing a duct through the outside wall, use the external louvre.
When using a flat outlet duct:
- Use flat ducts with rounded corners and air guides in the corners. These ducts are available from Novy.
General:
- Keep the duct as short as possible with as few corners as possible along its route to the outlet.
- Avoid sharp corners. Ensure corners are rounded for good air movement.
- When passing a duct through an outside wall which is a cavity wall, make sure the outlet duct completely crosses the cavity and protrudes slightly outside.
- When passing an outlet through the roof, use a double-walled roof outlet with an adequate capacity.
- Never connect to a smoke flue.
- Ensure adequate ventilation. Fresh air can be allowed in by opening a window or external door slightly or by fitting a ventilation louvre.
Incorrect installation can result in poor extraction, more noise, condensation and other undesirable effects.
View our extensive range of installation accessories