STERR Two Speed Controller DSC001 for DFA Duct Fan

Fitted to an old extractor hood, ie, took out the old motor, and fitted this in the roof space. So easy, and very quiet as i mounted it on very spongy rubberised pieces. do not forget the one way air valve and never ever reduce the airflow size with reducers, just buy the smalled diameter fan base, as this will make the item noisy. One last thing, beware the arrows for air direction, they are not immediately apparent, just a < on the base and the fan

This Fan is powerful and much quieter than my previous 6" fan.It comes without a mains cable attached, and can be wired two different ways for high speed/ lowspeed (there is no speed switch)

All in all this works fine for its purpose but if I use the high speed setting the fan sounds noisier than I would expect. Having said that, I only need the slower speed and the fan is mounted to a box like frame, which probably amplifies the sound.

Had a relatively powerful wall extractor, supper noisy and just ddn't tdo the job, lots of condensation and and balck mould as a consequence. So when renovating my bathroom, got this and installed in my loft above the shower. I connected with 6" flu. To minimise the noise potential I suspended the fan in the air with a couplke of 4x2" joists and boxed it in with some MDF. Worked a treat, less nise than my other one and no vibration. The performance is great, no condensation even my mirror doesnt steam up like it used to. Would recommend.

Brilliant

This is one big unit and from the specification, I thought it will perform to the highest standards but regrettably, it is neither silent nor powerful...the suction power is poor taking into consideration the size of the unit and it's m3 flow rate...we had a normal fan which is 1/10th the price previously and performed just as good

Easy install.Noisier than expected on startup.Happy with power, clearing steam better than old 4" fan

The subject title says it all.