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Silent 100 Design White Bathroom Fan with Timer and Humidistat IP45 Quiet Toilet Fan Envirovent SILDES100HT

Model No. SILD10HW by: EnviroVent
Availability: Usually 3-5 days


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This is the Silent 100 Design bathroom fan in white complete with an adjustable timer and adjustable humidity sensor, IP45 rated for bathroom or toilet use. 

This Envirovent SILDES100HT fan is part of the range of 100mm domestic axial extractor fans for wall or ceiling installations, designed to solve ventilation problems in utility rooms and bathrooms. Fitted with motors mounted on silent elastic blocks, the fans deliver incredibly silent running and exceptional performance with stylish features.

The SILENT 100 Design is an innovative domestic axial extract fan designed to offer a low level of noise supplied in a 230V format suitable for small rooms and bathrooms. The fan is fitted with a neon light, backdraught shutter and airflow guide vanes as standard.

Applications: the SILENT 100 Design with humidistat and timer can be wall or ceiling mounted to meet the Building Regulations - Part F (England), Scottish Building Regulations.

This particular fan - the Envirovent SILDES100HT - is a Silent 100 Design Fan with adjustable humidity control and ajudstable timer, in white.

Envirovent Silent 100 Design Fan with Humidistat and Timer - Features

  • It is sealed for life ball bearings.
  • It has silent elastic blocks. 
  • This fan has an IP rating of IP44. 
  • The backdraught shutter and the airflow guide vanes are standard. 
  • It has an incredibly silent running. 
  • It offers significant energy savings and it has a very high performance.
  • It fully complies with the building regulations. 
  • It comes with a five year guarantee.
  • Elegant fan for any modern bathroom. 
  • Whisper-quiet noise levels of only 26.5 dB(A).
  • Incredible low power consumption of only 8 Watts.
  • Suitable for wall and ceiling installations. 
  • Standard Thermal Overload Protection (S.T.O.P).
  • It can extract air directly to the outside or via an individual ducted system.
  • It has an adjustable humidity sensor: the level of humidity for the bathroom can be chosen from between 60% and 90% RH. The extract fan will continue to work long enough to reach the selected level.
  • It has an adjustable timer: After disconnection, shut off time can be delayed between 1 and 30 minutes. 
  • Warranty: this fan comes with a 5-year manufacturer warranty.

Silent 100 Design with Timer and Humidity Control - Technical

  • It has a neon light. 
  • Sealed for life ball bearings
  • Silent elastic blocks. 
  • Finish: white. 
  • Speed: 2400rpm
  • Wattage: 8W
  • Voltage: 230V 50Hz
  • Airflow: 22 l/s (m3/h) / 80 l/s (m3/h)
  • Silent fan: only 26.5db(A) @ 3m.
  • Weight: 0.65kg
  • IP rating: IP45 rated
  • Duct: 100mm / 4 inch ducting.
  • Dimensions: 188mm x 188mm face width/length, max. 84.6mm depth/ 79mm duct depth, 129mm total depth (with the front plage), 98.9mm diameter ducting.
  • Do not install near sources of heat in excess of 40°C
  • Warranty: this fan comes with a 5-year manufacturer warranty.
  • Position the fan at the furthest distance from the main source of air replacement in the room in order to achieve maximum airflow performance.
  • Full installation guide is enclosed with all products
  • The motor is a 230V 50Hz or A/C motor, which is assembled on silent elastic blocks and fitted with ball bearings for enhanced working life. 
  • The fan: The impeller is axial flow type.
  • Servicing: The extract fan only requires periodical cleaning using a cloth impregnated with a soft detergent.
Technical Features
Airflow 22 l/s (80 m3/h)
Colour white
Construction ABS thermoplastic
Ducting 100mm
IP Rating IP45
Max. Operating Temperature 40 deg C
Power 8W
Sound Output 26.5 dB(A) at 3m
Voltage 240V

Note: Some images and pictures are for reference only. The item may differ from the image/picture due to manufacturer's change. Should you require the exact item in the picture, please call or email us to enquire.

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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 meters, you will need a different fan with a stronger power of extraction. But in general, for domestic or regular office bathroom/toilet needs with 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 a 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 invest 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.

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

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. Note: the Silhouette S100 range is no longer available on our website; see the full Envirovent range we currently distribute. 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 S100 Silent Design 100 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.Note: all the Envirovent extractor fans can be found on our website; see this link for the latest offering.

How to Choose the Right Ventilation Fan at Home (Manrose Guide)

When it comes to domestic ventilation, we all need help; thanks to Manrose, we now have a guide on, How to Choose a Ventilation Fan at Home. We read their guide and we would like to present the main points recommended by this ventilation fans manufacturer as it relates to ventilation at home. Ventilation is absolutely necessary, and it is good to know the following matters related to ventilation at home:What are the Problems caused by Poor or No Ventilation?What do Regulations say about Ventilation at Home?Where should we Install a Ventilation Fan at home?What Ventilation Fan is Required for the Minimum Air Changes Required per Hour?How to Choose the Right Ventilation Fan at HomeWhat options are there for Ventilation at Home?What are the Problems caused by Poor or No Ventilation?If the ventilation fans are not working or nonexistent, or if there is poor ventilation in a home, there are a few problems that may arise. First, there is the stale air which we all hate. Stale air can be caused by things such as cooking smells, odours remaining in the bathroom, a general lack of ventilation around the house, smoking, and a damp atmosphere. Stale air is not good for health and is very unpleasant to breathe.Stale air can cause a certain level of discomfort and poses a risk of respiratory illness and general poor health. Condensation is another problem caused by poor ventilation at home. When the steam from the kitchen or the bathroom spreads in the house and finds cooler surfaces around the house, there is condensation. We may try to conserve heat by sealing the windows and keeping them closed, therefore reducing natural ventilation; this causes more condensation. The consequences of condensation in a home include mould growth, peeling wallpaper, and even severe structural damage such as wood rot or dampness. What do Regulations say about Ventilation at Home?According to the Building Regulations Document F1 (2006 Edition), we know the importance of ventilation. Furthermore, these regulations stipulate that mechanical ventilation must be installed in kitchens, bathrooms (or showers), and toilets. The ventilation fans installed need to meet or exceed the current Building Regulations so that humidity is removed at the source before it can reach the cooler part of the dwelling. In particular, what is recommended and even required by the Building Regs are as follows:Intermittent fans - they operate on an "as required" basis and are turned on or off with the light switch or via other control (such as a pull cord switch). These are the regular fans installed on the wall or ceiling that provide high extraction for a short period of time when turned on. In the bathroom or shower room, the regulations require a fan capable of extracting min. 15 litres per second when installed. In a toilet, separate from a bathroom, the regulations require a fan capable of extracting a minimum of 6 litres per second when installed. In the kitchen, the regulations require a fan capable of extracting min. 60 litres per second when installed. And in the utility rooms, the regulations require a fan capable of extracting min. 30 litres per second when installed. Continuous Fans - they work all the time to extract excess moisture and stale air at low extraction rates throughout the day, and they have a boost function when humidity levels rise. They are becoming more common, for they ensure better indoor air quality while using less energy than intermittent fans, thus being more cost-effective to run. The Regulations regarding these in terms of air extraction rates are as follows: in the bathroom or shower room - min. 8 litres per second, in the toilet (separate from a bathroom) min. 6 litres per second, in the kitchen - min. 13 litres per second, and in utility rooms - max. 8 litres per second.Buy Manrose 100mm Bathroom FanWhere should we Install a Ventilation Fan at home?The location of the ventilation fan is very important; it is of utmost importance to site the fan correctly. A ventilation fan needs to be always sited in the furthest window or wall from the main source of air replacement in order to avoid short-circuiting the airflow. Also, it needs to be located as high as possible in the window or wall nearest to smells or steam, but not directly above eye-level grills or cooker hoods. If a room in the house contains a gas boiler or any other fuel-burning device with a non-balanced flue, it is imperative that there's enough replacement air to prevent fumes from being drawn down the flue when the fan is extracting to its utmost capacity. Furthermore, according to the IEE Regulations in the UK, conventional mains voltage fans in a bathroom or shower must be located in places where they cannot be touched by a person using the bath or the shower, as well as away from any water spray. SELV fans (Safety Extra Low Voltage Fans, 12V fans) are specifically designed for safe ventilation of toilets, bathrooms, and shower rooms. They can be fitted within the area with splashing water (see their full specs) without any risk of electric shock. Buy Envirovent Design 100 Bathroom FanWhat Ventilation Fan is Required for the Minimum Air Changes Required per Hour?When considering where and what fan to install in a particular room at home, we need to know what is the minimum air changes required per hour. In order to calculate the correct air changes required for a room, you need to know the room volume in cubic metres, which is basically the length x width x height of the room, which needs to be multiplied by the number of air changes required. According to the current Building Regulations, here are the minimum air changes required per hour:Bathroom & Shower Rooms - 3 air changes/hBedrooms - 2 air changes/hCafés - 10 air changes/hCanteens - 8 air changes/hCellars - 3 air changes/hChanging Rooms with Showers - 15 air changes/hConference Rooms - 8 air changes/hGarages - 6 air changes/hHairdressing Salons - 10 air changes/hHalls & Landings - 3 air changes/hHospital Rooms - 4 air changes/hLaundries & Launderettes - 10 air changes/hLiving & Other Domestic Rooms - 3 air changes/hMeeting Rooms - 4 air changes/hOffices - 6 air changes/hRestaurants & Bars - 6 air changes/hSchool Rooms - 2 air changes/hShops - 8 air changes/hSports Facilities - 6 air changes/hStore Room - 3 air changes/hToilets – Domestic - 3 air changes/hToilets – Public - 10 air changes/hUtility Rooms - 15 air changes/hWorkshops - 6 air changes/hHow to Choose the Right Ventilation Fan at HomeIn light of all the requirements and specifications above, we need to find out in particular how to choose the right ventilation fan at home. When we choose the right ventilation fan, we need to bear in mind the types of air extractor fans and the types of switching/turning on for the fans available. Buy Airflow Quietair Bathroom FanType of Air Extractor Fan for HomeAxial Fans - the axial fans are designed to move air over short distances of up to 2m ducting. For example, you need an axial fan if you install it on the wall, the window, or the ceiling and the exit is straight through or the ducting is under 2m long. The axial fans come in 4-inch (100mm, the most popular ones), 5-inch (125mm), 6-inch (150mm), and larger sizes.Centrifugal Fans - these are designed to move air over longer distances, performing well against the pressure caused by longer lengths of ducting and resistance by grilles. They are not as popular as the axial fans but sometimes are recommended to use. When ducting vertically, it is recommended that a condensation trap is used. Type of Switching On/off for the Ventilation FansStandard ventilation fans: the standard model fans are wired to the wall switch for remote switching through either a wall light or a separate switch. They are the most common ones. Timer ventilation fans: the timer models have a built-in adjustable time delay operated by the light switch. The time delay can be adjusted at installation, and these are suitable for locations where you need some extra ventilation even after the light is turned off. Pull-cord ventilation fans: the pull-cord fans have a pull-cord switch to be turned on/off when needed via this means. Humidity ventilation fans: the humidity models with built-in adjustable sensor turns the fan on when a certain threshold of humidity is sensed. They are automatically turned ON or OFF when the humidity sensor detects the humidity levels. PIR or Microwave Sensor ventilation fans: the PIR models are sensitive to movement. When someone enters the room, the fan turns on, and when presence is not detected, it is turned off.What options are there for Ventilation at Home?On our website, we have a wide range of ventilation systems available, and the three main manufacturers we distribute are Airflow, Manrose, and Envirovent. For further information concerning what ventilation fan you require at home, do not hesitate to contact us. You can also visit the dedicated sections for Airflow Extractor Fans, Manrose Extractor Fans, and Envirovent Extractor Fans.


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