Shower room fans (electric, not people who like shower rooms)

We’re eventually getting round to putting back together the wreck of a house we bought 5 years ago, and the spare bedroom is the first room to be done. This means a new ensuite shower room and there is s world of fans out there that I can’t be bothered to research fully.

So, relatively compact ensuite to go in of about 2.5m x 2m and only 2.1m height. Shower, sink and loo to go in with fan in the ceiling above the shower (or possibly in the wall as the shower unit udon an external wall). I want a powerful fan that will operate quietly and which will get most of the steam out before it condenses on the ceiling / walls. And one that won’t rattle in the wind or break down after 2 years.

What make & model go you recommend?

Thanks.

tick for me too.

Manrose Mixflo range in 150mm diameter on high flow with rigid extraction and all insulated to reduce condensation if it goes into the roof space.

This can shift 500m2/hr and will make a big difference.

It will make some noise but any high flow fan will and I have fitted dampers to stop the back flow from the wind.

It is worth spending money in this area or all your good work will not look so good in 2 years time. Just get it right first time by not fitting a cheap 30m2/hr one for £20.

I just bought and fitted an Aventa AV100T for our bathroom.
Best price I could find was from Fastlec – it was under £40 incl. delivery.

We had an extractor installed last year by an electrician but it was a teeny Manrose shower fan kit and didn’t really make much difference.
This thing doesn’t feel like it’s pulling a lot of air out of the room if you hold your hand over the ceiling vent, but it must be as it keeps our bathroom nice & clear and if you stand relatively near the door you can feel a draught of air being sucked in around your ankles. Still get condensation on the mirror, but that’s to be expected.

It was easy to install, but we already had the isolator, ducts and wiring in place from the previous fan.

Annoyingly – I looked at those Manrose mixflo fans when i was trying to decide which to go for and the cheapest I could find was about £70, which was more than I was willing to pay (for the 100mm fan, not the 150mm one mentioned above).
But have just found them here:
http://fans4less.co.uk/manrose-mf100-in-line-fan-mixedflow.html
for £55 and they appear to do free delivery.

The 4″ Manrose mixflo does 245m^3/hr which should be more than plenty for the size of bathroom you describe – roughly 10.5m^3.

The Aventa AV100T that I bought does 187m^3/hr, which is fine for our bathroom – size is roughly 12.5m^3, I think.
This is where I got mine from:
http://www.fastlec.co.uk/ventilation/extractor-fans/airflow/aventa-inline
and they delivered very quickly.

I’ve got a Manrose inline (can’t remember which model) and it’s good.

Timely post.

We’ve got a Vent Axia extractor fitted in our en-suite. It’s supposed to come on when you switch the bathroom light on for, then run for a bit afterwards. Unfortunately it wants to run all the time even after the light is switched off so I have to switch it off at the isolator.

Anyone clued up and know whether it’s likely to be a problem with the fan itself or the isolator?

Fan – the timer part is built into it, not the isolator.

I’ve got one of these coupled with a humidity sensor, works really well (albeit with a little bit of fiddling with the sensitivity settings)

http://www.fastlec.co.uk/airflow-icon-eco15s-dc-low-voltage-fan-100mm-lv-selv?gclid=CLSAxdWJj8QCFdPMtAodNywAhg

I have one of the Manrose MF100s which I installed to replace a low flow cheapo fan we previously had so re-used the previous ducting, etc. It cost about £50 and is good and extracts well, but over the winter has been very rattly / noisy when it has been cold. Mine is up in the loft and near the edge of the house so I guess this may just be that it is at the limit of its comfort when temperatures are low.

mj27 – is your insulation just for the ducting or for the fan unit too?

We’ve got a Vent Axia extractor fitted in our en-suite. It’s supposed to come on when you switch the bathroom light on for, then run for a bit afterwards. Unfortunately it wants to run all the time even after the light is switched off so I have to switch it off at the isolator.

Anyone clued up and know whether it’s likely to be a problem with the fan itself or the isolator?

Is it new? It’s just been wired up wrong.

If you get the switched live (SL) and live connections the wrong way around, then it will run all the time.

Can anyone recommend a fan to go through a masonry wall, rather than via loft space? Also, are dampers worth it or are gravity flaps enough?

Rigid ducting helps flow rates and I believe it’s now a reg for nhbc properties.