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Sigma is an elegant wall model in steel, with a delicate, curved glass plate.

The product is not for sale through our website, only through our retailers.


It is available in 90 cm width and is placed freely on the wall. The effective grease filter is easily removed and can also be washed in the dishwasher. Sigma also has an indicator that tells when the filter should be cleaned.

Delivered for all forms of ventilation and is also available with integrated stove guard.

Sigma is also available as an Island hood.

Additional information

90 cm duct out, 90 cm duct out SAFE SG, 90 cm balansced ventilation, 90 cm balanced SAFE SG, 90 cm external-/ sentralventilation, 90 cm external-/sentralventilation SAFE SG, 90 cm common exhaust

Ventilation forms

Duct out, Recirculation, External engine, Sentral ventilation, Balanced ventilation, Common exhaust

Metal / Colour


Energy class


Extraction m3/t

300/470/620 (B 700)

Noise level dBA

53/63/68 (B 71)


2 x LED

Outlet dimensions


Hight of wall-attachment

310 mm from the bottom of the hood

Tips and advices

The diameter, length and number of bends in the duct affects the efficiency of your extraction.
Often, the actual extraction is half of the motor capacity, due to poor installation. Use ducting that creates the least possible resistance. This means using ducting that is as smooth as possible inside with as few bends possible. In the case of flexible ducting, make sure the ducting is taught. Try to keep the distance of the ducting as short as possible. In situations where the distance is large and requires lots of bends, it’s best to get a hood with the highest possible extraction to compensate for the loss.

The recommended distance above the hob is 50–75 cm. It will be easier to cook if the hood is raised slightly.
NB: The distance above a gas hob must be at least 75 cm due to the risk of fire.

Please check your local building regulations for clearance height restrictions for your hob from your hood.




Here you can download documents in PDF format.

Product Sheet: Click here

User- and mounting instructions Duct outClick here
User- and mounting instructions Balanced ventilation: Click here
User- and mounting instructions Sentral ventilationClick hereTrenger du andre bruksanvisninger? De finner du på denne siden »

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Røros Metall AS
Stamphusveien 11
7374 Røros, Norway
(+47) 72 40 94 00

Opening hours other weeks:
Monday – Friday: 08:00 – 16:00
Saturday – Sunday: Closed

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