2.7W/4.8W Silent 100mm Bathroom Extractor Fan with Humidistat & Timer IPX5 12dB Closed Grille Vent-Axia 477436B
£87.71
Ex. VAT
(over £100+VAT, applies to zone A only , £6 +VAT otherwise)
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This is the 2.7W/4.8W Silent 100mm Bathroom Extractor Fan with Humidistat & Timer IPX5 12dB Closed Grille Vent-Axia 477436B - a Silent Fan 100mm Fixed Speed, Intermittent, Humidistat Model, Closed Grille - available at SparksDirect.co.uk for the best price.
The Vent-Axia 477436B Silent Fan is a premium 100mm axial bathroom extractor fan that combines exceptionally quiet operation with intelligent automatic ventilation. Featuring two installer-selectable motor speeds (2.7W or 4.8W), a built-in humidistat, and a 15-minute overrun timer, it automatically removes excess moisture from bathrooms, en-suites and shower rooms while consuming very little energy. Operating from just 12dB(A), it is one of the quietest domestic extractor fans available, making it ideal for modern homes where comfort is just as important as performance.
The integrated humidistat continuously monitors humidity levels within the room. Whenever moisture rises above the selected threshold—typically after a bath or shower—the fan switches on automatically to extract warm, humid air before condensation can form. The fixed overrun timer ensures the fan continues operating after the light has been switched off, helping to eliminate residual moisture and reduce the risk of mould and damp.
Designed with flexibility in mind, the 477436B can be installed on walls, ceilings, windows or panels and connects to standard 100mm ducting. Its stylish low-profile fascia, integrated backdraught shutter, energy-efficient motor and IPX5 rating make it an excellent choice for domestic bathrooms, cloakrooms and en-suite installations where reliable, near-silent ventilation is required.
Features & Benefits
- Ultra-quiet operation from just 12dB(A)
- Ultra-low energy motor with 2.7W and 4.8W selectable power consumption
- Built-in humidistat for fully automatic moisture control
- Fixed 15-minute overrun timer
- Two installer-selectable airflow speeds
- Suitable for intermittent operation
- Integral backdraught shutter prevents cold air entering the property
- Suitable for wall, ceiling, window and panel mounting
- Standard 100mm (4") duct connection
- IPX5 rated for bathroom installations
- Suitable for Bathroom Zones 1 and 2 (subject to BS 7671)
- Helps prevent condensation, damp and mould
- High-efficiency motor reduces running costs
- Stylish low-profile white finish
- Complies with Building Regulations Approved Documents F and L
Technical Specifications
- Manufacturer: Vent-Axia
- Product Code: 477436B
- Model: VASF100HT
- Product Type: Silent Bathroom Extractor Fan
- Fan Type: Axial
- Duct Diameter: 100mm (4")
- Supply Voltage: 230V AC
- Frequency: 50/60Hz
- Power Consumption: 2.7W (Low Speed) / 4.8W (High Speed)
- Operation: Intermittent
- Humidistat: Built-in
- Timer: Fixed 15-minute overrun
- Speed Settings: Two (installer selectable)
- Maximum Extraction Rate: 15 litres/second
- Maximum Airflow: 54m³/hour
- Low Speed Airflow: 21.6m³/hour
- Noise Level: From 12dB(A) at 3 metres
- Motor Type: High-efficiency motor
- Backdraught Shutter: Integral
- Mounting:
Wall
Ceiling
Window
Panel - Ingress Protection: IPX5
- Bathroom Zones: Suitable for Zones 1 & 2 (subject to wiring regulations)
- Colour: White
- Dimensions:
Height: 160mm
Width: 160mm
Depth: 117mm - Compliance:
Building Regulations Approved Document F
Building Regulations Approved Document L - Certifications:
UKCA
CE
Three Reasons Customers Recommend This Product
1. One of the Quietest Bathroom Fans Available
With an operating noise level of just 12dB(A), the 477436B is ideal for homes where quiet operation is essential, particularly in en-suites and family bathrooms.
2. Automatic Humidity Control
The integrated humidistat detects rising moisture levels and starts the fan automatically, while the overrun timer continues ventilation after the room has been used, helping to reduce condensation and mould.
3. Extremely Energy Efficient
The selectable 2.7W or 4.8W high-efficiency motor delivers effective ventilation while keeping electricity consumption exceptionally low, making it economical to run throughout the year.
Who Can Install This?
In the UK, the Vent-Axia 477436B should only be installed by a qualified electrician. As the fan connects to the property's fixed electrical wiring, installation must comply with the latest edition of BS 7671 (IET Wiring Regulations) and Building Regulations Part F (Ventilation). Professional installation ensures the humidistat, timer and electrical connections are configured correctly and safely.
Who Needs This Product?
This extractor fan is ideal for:
- Qualified electricians
- Bathroom installers
- Ventilation specialists
- Homeowners upgrading bathroom ventilation
- Landlords
- Property developers
- House builders
- Letting agents
- Housing associations
- Hotels and guest houses
- Facilities managers
It is particularly recommended for bathrooms where condensation, damp or mould are persistent problems.
Where Can This Be Installed and How Does It Work?
The Vent-Axia 477436B is suitable for installation in:
- Bathrooms
- En-suite bathrooms
- Shower rooms
- WCs
- Cloakrooms
- Utility rooms
- Small domestic washrooms
The fan can be mounted on a wall, ceiling, window or panel and connects to a standard 100mm ducting system.
During normal operation, the built-in humidistat continuously measures the room's humidity. When moisture levels rise above the selected setting, the fan automatically starts and extracts humid air to the outside. Once humidity has reduced, the integrated 15-minute timer keeps the fan running to remove any remaining moisture before switching off automatically. With two selectable airflow settings and an ultra-efficient 2.7W/4.8W motor, the fan delivers reliable ventilation while maintaining exceptionally low running costs and whisper-quiet performance.
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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Shipping
Sparks Direct delivers via courier to the UK only; the standard delivery charge is £6 + VAT for all orders under £100 + VAT. If your order is over £120, you get free delivery (unless there's a special delivery charge for the items you wish to order or you're in shipping zone C or D). Full details for shipping charges can be found via Terms and Conditions.
If the items you order are in stock and the order is placed before 1.00pm, delivery can be made within 1-2 working days. If the items are not in stock, we will inform you via email how long it will take or ask for your confirmation if there's a long lead time.
Returns
We offer 30-day returns for unwanted items - please email us to request a returns number which will need to be quoted when the items are returned. For faulty items or items damaged in transit, please advise via email, and an appropriate returns number will be provided. Full details concerning returns and refunds can be found via our Terms and Conditions.
