Category Archives: ventilation fans

What to Look For when Buying a Bathroom / Toilet Ventilation Fan

What to Look For when Buying a Bathroom / Toilet Ventilation Fan

What to Look For when Buying a Bathroom / Toilet Ventilation Fan

In our > 20 years of experience in selling electrical products for both domestic and commercial use, we have encountered a lot of questions from our customers both online and in our shop.

Many of these questions are related to the choosing of the right bathroom ventilation fan. What does one need to know about the bathroom fan which he needs to install at home? What features he needs to make sure it has, so that he would have the latest in technology and in aspect?

We asked our consultants on the counter here in our showroom in Archway and we checked the questions you have asked us online, and we compiled a list of such questions below.

The Size of the Bathroom Fan

The size of the bathroom or toilet fan matters. In general, for the domestic use people need mainly the 4 inch fan, 100 mm diameter (the extracting diameter / duct). The front lid / the grill is in general max. 158 x 158 mm – small, not taking too much space in the bathroom.

The Fan Must have a Timer

Many times we forget to turn off the light in the bathroom, and it is the same with the fan – it is better to make sure that the bathroom fan turns itself off in 2-3 minutes after you leave the bathroom. The timer module is many times incorporated into the fan, and it can be set up to the time lag desired.

How Quiet is the Fan?

It is very important to have a quiet fan, so quiet that you cannot even hear it! Some fans are so loud that you hate being in the bathroom with them running in the background :( while others like Airflow QT100T and Envirovent SIL100T are as quiet as 26.5dB(A) at 3m – you can barely hear the fan extracting the air!

How Far is the Ducting?

If the ducting needs to be longer than 3 metres, you will need a different fan with a stronger power of extraction. But in general, for domestic or regular office bathroom / toilet needs with a ducting up to 3m (the length of the ducting until the outside / the central ventilation system). Ducting can also be purchased via Sparks.

What is the Cheapest 100mm Toilet Fan?

Many customers ask this question, and on our website we have the PRO100T from Envirovent (100mm diameter, with timer included). It is not the quietest among them all, but it is definitely the cheapest and most popular one! For those who are looking to make an investment in a quiet fan with a stylish look, the SIL100T and QT100T are the first choices.

Extra: Dust Free Grill

Dust tends to accumulate on the grill of the fan, and with time and use the fan needs to be gently wiped with a clean cloth (see the instructions included in the package). If you are looking for a fan that has a dust-free grill (no dust accumulating as time goes by) check out the Envirovent SILD10TW. It always stays clean!

Was the above information useful? Do you have any other questions regarding the Bathroom Fans? Let us know in the comments.

The Best Value-for-Money Bathroom Ventilation Fan: Silent yet Stylish

The Best Value-for-Money Bathroom Ventilation Fan: Silent yet Stylish [in the picture: Silent 100 from Envirovent]

We did some research recently into what is the best bathroom fan, especially when it comes to these three criteria’s: silent, stylish, and value for money.

The Best Value-for-Money Bathroom Ventilation Fan: Silent yet Stylish [in the picture: Silent 100 from Envirovent]

We asked both our customers and our consultants over the counter, and the result is unequivocally the Silent 100 from Envirovent (sorry to spoil the surprise).

And here are some reasons why we came to this conclusion.

A Bathroom Fan that is Silent!

The SIL100T Silent 100mm bathroom fan is a 26.5db(A) at 3m fan – which mainly means that it is very silent.

It is so annoying when you go to the bathroom and the fan – which comes on automatically – is loud in its operation! Believe me, I know what I’m talking about. You don’t even want to be there.

But with the Silent 100 fan there is no such problem: it’s incredible silent running will insure you virtually don’t even hear it – it simply operates in the background.

A Stylish Bathroom Fan?

People pay attention to style, but sometimes in the bathroom you may not even need too much style (unless you’re planning to spend a lot of time there). In our research and comparison, we have found other bathroom ventilation fans that are more stylish, but the Silent 100 with timer was alright.

The white or silver finish gives it a plus – it can match the design of the bathroom.

Best Value for Money

This is the tricky part: who wants to pay close to £100 for a bathroom fan? At this point in our research we realized that there’s no other fan yet that can match the value for money Silent 100 Fan from Envirovent can.

A little less than £50 (VAT included) will insure you will have a wall, window, or ceiling mounted fan with timer included, with a full IP45 rating for bathroom use.

Other Gold Stars

Style, silence, and value for money is not all EnviroVent has to offer with SIL100T.

Read more via, New Cheaper Silent Fan (the EnviroVent 100 Fan with adjustable timer), and visit our website to find out more about the IP rating, the high performance, the dimensions, the timer module, the energy saving properties, the guarantee, the motor speed, the light weight, and many other little gold stars on this fan.

Question: if you purchased and installed one of these, or if you have seen them in action, what do YOU think? Are they as good as this article says, or better?

Picture credit: via Envirovent website here.

Bathroom Extractor Fan Comparison: the Silent Design 100 vs the Silhouette S100

Which is the best value extraction fan for the bathroom?

Which is the best value extraction fan for the bathroom?

Today we are putting two bathroom fans against one another. We have a lot of ventilation fans in-store, but they’re not all intended for the same purpose – some fans are more equal than others.

A bathroom fan needs to have a great extraction rate to fight condensation, odours, and the formation of allergens (particularly mould). It ought to be quiet enough to run in the middle of the night without waking everyone up, and with the drive to save energy, it should consume as little energy as possible.

The Silhouette S100 and the Silent Design 100 are similarly priced – but which of them offers more value for money?

Bathrom Extractor Fans Comparison

Silhouette S100Vent-Axia Silhouette S100 Bathroom Extraction Fan Silent Design 100Envirovent Silent 100 Bathroom Extraction Fan
Ducting size 100mm 100mm
Power Consumption 16W 8W
Airflow 26 litres/sec 22 litres/sec
Noise 37 dB(A) 26.5 dB(A)
IP Rating IPx4 IP45
Operation Manual switch Manual switch and timer
Integral Timer No Yes

The Results

The S100 fan is more suited to bathrooms and utility rooms whereas the Silent Design 100 is drip-proof, consumes less power with an 8W motor and integral timer operation, and is – well, almost silent. For intermittent ventilation in a domestic bathroom, this is the clear option.

However, the S100 has a slightly higher extraction rate – and if you remember this video, you might recall that the Silent Design 100’s flat cover is a natural enemy of the extractor fan – or at least it would be, if not for the curved design of the cover that counteracts the effect. As listed, both these items exceed the extract ventilation rates mandated by the Building Regulations ADF (2010).

It should be noted that the Silhouette S100 can be expanded at a little extra cost to include more features than the Silent Design 100, but it runs a higher cost. A timer model, for example, runs to approx. £37 + VAT, but more options are available including motion sensing and humidity-regulating models. In comparison, a humidity-sensing model of the Silent Design 100 costs £57 + VAT. If you need more granular control options, for example in office buildings and commercial properties, this is the model of choice.

How Decibel A-Weighting Works and Why It's Important for Fire Alarms

How to measure LOUD NOISES

If you’ve taken a

look through our Fire Alarms and Ventilation systems (maybe it’s a slow afternoon at the office), you might have noticed that sometimes we give a dB(A) value in the technical information, under something like “sound output.”

This fire alarm sounder has a sound output of 101 dB(A); on the other hand, there’s an extractor fan with less than a quarter of the sound output, at 25 dB(A).

Measuring Noise

dB(A) stands for Decibel A-weighting – it’s a measurement of the level of sound pressure in the air. That measurement is modified so that the measured loudness matches the loudness that is perceived by the human ear as closely as possible.

This is opposed to a straight, physical measurement of the sound pressure in the air; the people in charge of taking the measurements try to ensure that the perceived sound stays reasonably constant in all environments. (Strictly speaking, this isn’t always possible for a huge number of reasons, but it’s close.)

Our examples are human-centric applications, after all; workplace noise measurements are also expressed in dB(A) in order to comply with regulations.

An A-weighting filter de-emphasises the lower frequencies (pitches) of a sound and emphasises those around 3000-6000 Hertz where the human ear is more sensitive.

For the physics geeks in our readership (and we assume there must be a few), Wikipedia has a good primer on the subject of decibel A-weighting, with curves and equations.

This gives an easy, single-number measurement of noise level that we can compare with the noise level in the environment. When we need to install a fire alarm, to carry on with our examples, it should be louder than the ambient noise.

Using Noise

The alarm sounder we mentioned above has a sound output of about 101 dB(A), which is a little bit louder than a newspaper press. The “ultra-quiet” ventilation fan is about as loud as a person whispering to themselves in an art gallery.

The measurement in dB(A) allows a contractor to compare the sound output of a thing with the environmental noise level: if the sound output of an alarm sounder is higher than the general level of noise, then the alarm will be heard. If the source output is lower, then it will be masked.

Sometimes, the distance from the source is also given. This is useful – even essential – for larger environments, where an alarm sounder might be installed far away from someone working at a factory machine, for instance. Generally, as the distance doubles, the sound level in dB(A) is halved. This should be taken into account when installing an industrial alarm system.

Broadly: you’ll want to go as loud as possible with the fire alarms (ideally without damaging anybody’s hearing!), and as quiet as possible with ventilation fans and other such appliances.

It’s an interesting experiment and it opens up a whole new can of worms (as if we didn’t have enough already) – how loud is your office? Your house? Are you using the right appliances for the noise level?

The Silent 100 Extractor Fan Faces the Envirovent Fan Power Challenge

The Silent 100 extractor fan faces the Envirovent "fan power challenge" - will it pass?

 The Silent 100 is the latest fan to undertake Envirovent’s gruelling Fan Power Challenge. It’s a fun video, and full of great information for installers. Did you know that a flat cover is the natural enemy of the extractor fan?

A Silent Fan by Name and by Nature

It’s hard to convey in words just how quiet the Silent extractor fans run, so it’s nice that Envirovent have uploaded some videos. Compared with competing products, the difference is so great that at first, we weren’t sure it was plugged in – the microphone can’t pick up the sound!

Sparks Direct stocks Silent 100 extractor fans, optionally with integrated timers and humidistats. They’re great in bathrooms, utility rooms, and kitchens, where a great deal of extraction is required.

(In the video, the silver model is put to the test: you can purchase one here with a timer and humidistat.)

These fans are extremely reliable – out of all the items we’ve sold, we have had only one return! When it comes to high-power air extraction and humidity control, the Silent 100 is the clear choice for architects, contractors, and ventilation enthusiasts.

Earlier today, Envirovent dropped off a display unit, and we’ll be playing with that in the weeks to come. Keep your eye on this blog for the results!

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