Bathroom extractor recommendations

[Matthew]

Looking for a 100mm straight through wall extractor - customer wants super silent!!! Any recommendations?

 

[buzzlightyear]

Yes ,ear plugs .

 

[Baddegg]

Loads of good ones out there mate,expelair silent are good but manufactures spec a 3a fuse in line,which can become a pain finding a place to locate it.....bout £70 ish,although of cost is an issue you could always take buzz’s advice....

 

[Dobes_88]

I fit the Envirovent fans personally, think they look smart and have a good extraction rate whilst remaining quiet -

Envirovent SIL100T Silent 100 White Low Noise Wall / Ceiling Axial Extractor Fan With Adjustable Timer IP45 26.5dB(A) 100mm / 4 Inch 240V, SIL100T - http://www.discount-electrical.co.uk/product.php/389805324/envirovent-sil100t-silent-100-white-low-noise-wall---ceiling-axial-extractor-fan-with-adjustable-timer-ip45-26-5db-a--100mm---4-inch-240v

 

[Baddegg]

There are a couple of males that don’t specify fusing down...

 

[123]

Another vote for the Envirovent from me, very good fan.

 

[mhar]

If in a windy location I use the airflow icon range as they have inbuilt electronic (and quite funky!) backdraught shutters and you can add many different types of modules fot different requirements (pullcord, timer, humidistat, pir etc). Unfortunately they do specify a 3A fuse

 

[Adam W]

I agree

 

[suffolkspark]

Another vote for envirovent sil100t. Nothing else comes close

 

[gutterball]

Monsoon MON-S100T Silence 100mm Silent Fan inc Timer - https://www.electrical2go.co.uk/nat-vent-silence-100mm-silent-fan-with-timer.html

 

[tlangdon12]

There is no problem fusing down a fan if you select a fused isolator for the fan. Fused Isolators are available in three pole models specifically for extractor fans.

 

[SparkyChick]

Not keen on the idea of the fused 3 pole isolators as they only have one fuse. There are two lines that could be live and since both connect to the fan, both have the potential to cause a fault or potentially a fire.

I normally take the bathroom lights off the main lighting loop and fuse it all down to 3A (if required by the manufacturers instructions) and have a separate 3 pole isolator (if required by the manufacturers instructions).

Note - This is my personal opinion

 

[Electrical2go]

Hi,

Our top sellers in "silent" fans would be as follows (prices do not include your 5% forum discount). I would happily recommend all three.

• Envirovent SIL100T Silient 100 Whisper Quiet Toilet & Bathroom Fan with Timer £24.16 +VAT.

• Vent-Axia Silent Fan with Timer VASF100T 4inch/100mm Bathroom Fan (446659) £30.79 +VAT

• Monsoon MON-S100T Silence 100mm Silent Fan inc Timer £27.00 +VAT

Kind regards,
Ivan

 

[chris gray]

Monsoon are very very quiet

 

[Marcus Vaughan]

Not keen on the idea of the fused 3 pole isolators as they only have one fuse. There are two lines that could be live and since both connect to the fan, both have the potential to cause a fault or potentially a fire.

I normally take the bathroom lights off the main lighting loop and fuse it all down to 3A (if required by the manufacturers instructions) and have a separate 3 pole isolator (if required by the manufacturers instructions).

Note - This is my personal opinion

Seems a bit of minefield this issue and there are lots of posts regarding it on this forum. Some say that a 6amp Type B MCB will trip before the 3amp BS1362 pops, though I don't believe that when looking at the time/current characteristics for both. I think the 3amp will blow at 5amp or soon after.

I'm no expert but trying to get my head round it all. It has been mentioned on here that the switch line operates the timer only and the permanent live feeds the fan. So if the fan starts sticking or drawing more current then perhaps only the permanent live needs fusing down.

See attached though, for the icon30, which shows you can, if using external switching, get away with the 3 amp fuse in the permanent live only.

So I know I have to pay particular to manufacturers instructions with fans.

All this aside, I like the way you overcome this, as it removes all doubt.

But what I would like to do even more, and going back to to the original post, is buy fans that do not need fusing down!

 

[SparkyChick]

I think whether the 3A fuse blows before a 6A breaker trips depends on the characteristics of the fault. Under certain conditions the MCB will sit there quite happily while the fuse should melt.

There are some fans that don't require fusing down. I can't remember off the top of my head but it maybe Vent Axia... I'll know for certain soon as I've got a couple of bathroom fans to replace myself for existing clients, they aren't too well and I want to avoid the unecessary disruption of lots of tinkering so I'll be sourcing some

See, I just don't get that only fusing the permanent live, and the reason I say this is because ultimately the timer boards are electronic. You can't plan the failure mode of electronic components when they go up in smoke. I know the power is removed when the lights feeding the switched live is removed, but still. It just doesn't sit well with me, maybe I'm being too overly cautious about it.

 

[Marcus Vaughan]

I think whether the 3A fuse blows before a 6A breaker trips depends on the characteristics of the fault. Under certain conditions the MCB will sit there quite happily while the fuse should melt.

There are some fans that don't require fusing down. I can't remember off the top of my head but it maybe Vent Axia... I'll know for certain soon as I've got a couple of bathroom fans to replace myself for existing clients, they aren't too well and I want to avoid the unecessary disruption of lots of tinkering so I'll be sourcing some

See, I just don't get that only fusing the permanent live, and the reason I say this is because ultimately the timer boards are electronic. You can't plan the failure mode of electronic components when they go up in smoke. I know the power is removed when the lights feeding the switched live is removed, but still. It just doesn't sit well with me, maybe I'm being too overly cautious about it.

Better too cautious than not cautious enough.

I think I’m going to follow your lead...

 

[Baddegg]

Better too cautious than not cautious enough.

I think I’m going to follow your lead...

That’s always my preference but as SC says it’s not always practical to fuse down the whole bathroom,So it’s always nice to have the option of a manufacturer that doesn’t spec fusing down

 

[Baddegg]

I think whether the 3A fuse blows before a 6A breaker trips depends on the characteristics of the fault. Under certain conditions the MCB will sit there quite happily while the fuse should melt.

There are some fans that don't require fusing down. I can't remember off the top of my head but it maybe Vent Axia... I'll know for certain soon as I've got a couple of bathroom fans to replace myself for existing clients, they aren't too well and I want to avoid the unecessary disruption of lots of tinkering so I'll be sourcing some

See, I just don't get that only fusing the permanent live, and the reason I say this is because ultimately the timer boards are electronic. You can't plan the failure mode of electronic components when they go up in smoke. I know the power is removed when the lights feeding the switched live is removed, but still. It just doesn't sit well with me, maybe I'm being too overly cautious about it.

I think vortice don’t need fusing SC

 

[Octopus]

Greenwood and S&P don't need fuses ........................