---
product_id: 48411030
title: "Domus SDF100TB Bathroom Extractor Fan with Timer. For 4\" / 100mm duct"
brand: "silavent"
price: "€ 134.44"
currency: EUR
in_stock: true
url: https://www.desertcart.be/products/48411030-domus-sdf100tb-bathroom-extractor-fan-with-timer-for-4-100mm
store_origin: BE
region: Belgium
---

# 20W power efficiency 20 L/s airflow Built-in timer Domus SDF100TB Bathroom Extractor Fan with Timer. For 4" / 100mm duct

**Brand:** silavent
**Price:** € 134.44
**Availability:** ✅ In Stock

## Summary

> ⏳💨 Fresh air on your schedule, style included.

## Quick Answers

- **What is this?** Domus SDF100TB Bathroom Extractor Fan with Timer. For 4" / 100mm duct by silavent
- **How much does it cost?** € 134.44 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/48411030-domus-sdf100tb-bathroom-extractor-fan-with-timer-for-4-100mm)

## Best For

- silavent enthusiasts

## Why This Product

- Trusted silavent brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Freshness:** Powerful 20 L/s extraction keeps your bathroom crisp and odor-free.
- • **Seamless Integration:** Compact 165mm x 165mm design fits standard 4" ducts with modern glossy finish.
- • **Energy-Smart Operation:** Consumes just 20 watts, balancing performance with low energy bills.
- • **Hassle-Free Installation:** No earth wiring needed; simple 3-wire connection for quick setup.
- • **Timed Ventilation Control:** Built-in timer lets you customize airflow duration—never over-ventilate again.

## Overview

The Domus SDF100TB is a sleek, energy-efficient bathroom extractor fan designed for 4" ducts, delivering 20 liters per second of airflow at just 20 watts. Featuring a built-in timer and easy 3-wire installation without earth connection, it combines modern aesthetics with practical performance for a fresher, smarter bathroom environment.

## Description

This model is for operation in conjunction with the room light switch. When the light is switched on the fan comes on, when the light is switched off the fan continues to run for a pre-set time (adjustable). This fan requires permanent live, switched live and neutral (3 wires excluding earth) at the fan position in order to operate correctly. The timer function cannot be used unless you have these three wires to connect. There is no pull-cord on this model

## Features

- Wiring- Requires Switched Live, Permanent Live and Neutral. No Earth Required.
- Extract volume: 20 l/s
- Power Consumption: 20 watts. Mains 230v
- Dimensions: 165mm wide x 165mm high
- .

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004OOHA5G |
| Air Flow Capacity | 20 Litres Per Second |
| Best Sellers Rank | 214,756 in DIY & Tools ( See Top 100 in DIY & Tools ) 439 in Bathroom Fans |
| Blade Length | 4 Inches |
| Brand Name | Silavent |
| Collection Name | Bathroom |
| Colour | White |
| Control Method | Touch |
| Controller Type | Touchpad Control |
| Customer Reviews | 4.4 4.4 out of 5 stars (360) |
| Electric Fan Design | Exhaust Fan |
| Finish Type | Glossy |
| Included Components | Cord |
| Indoor Outdoor Usage | Indoor |
| Installation Type | Fixed |
| Is Product Cordless | No |
| Item Dimensions D x W x H | 16.5D x 16.5W x 16.5H centimetres |
| Item Weight | 0.61 Kilograms |
| Manufacturer | Silavent |
| Model Name | SDF100TB |
| Model Number | SDF100TB |
| Mounting Type | Window Mount |
| Number of Packs | 1 |
| Part Number | SDF100TB |
| Power Source | Corded Electric |
| Recommended Uses For Product | Exhausting |
| Room Type | Bathroom |
| Size | 165mm |
| Special Features | Lightweight |
| Style | Modern |
| Theme | Modern Bathroom |
| UPC | 798256166990 |
| Unit Count | 1.0 count |
| Voltage | 230 Volts |
| Wattage | 20 watts |

## Product Details

- **Brand:** Silavent
- **Colour:** White
- **Electric fan design:** Exhaust Fan
- **Mounting type:** Window Mount
- **Power source:** Corded Electric
- **Product dimensions:** 16.5D x 16.5W x 16.5H centimetres
- **Recommended uses for product:** Exhausting
- **Room type:** Bathroom
- **Special feature:** Lightweight
- **Style:** Modern

## Images

![Domus SDF100TB Bathroom Extractor Fan with Timer. For 4" / 100mm duct - Image 1](https://m.media-amazon.com/images/I/71Vip1NGqKL.jpg)

## Questions & Answers

**Q: Is this fan suitable for ceiling fittings**
A: The spec from the manufacturer states that if used as a ceiling fan you should not use a pull cord switch. Also you must fit a condensation trap.

**Q: What are the unit measurements - understand duct is 4 inch but I would wish to cover up where existing unit is which is 6.25 inches square.**
A: I dont know. it covered the hole in the tiles where mine was installed. tiler had tiled up to it. too lazy to remove fan to tile behind it.

**Q: could anyone tell me what corner the electrical entry is please**
A: Yes, just bought one of these. The moulding is 160mm square with 2 press outs for cable entry, 1 top,1 bottom. The connection to the pcb is at the top. You will need 100mm length from the cut out entry to the screw block terminal.

**Q: is it easy to set this up so that the over run timer works?**
A: its already set. you just adjust the run-on time. you do need a permanent live for the run-on, so a 3 core cable from the light to the fan:  perm. live/switched live/neutral.  no earth req.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.be/products/48411030-domus-sdf100tb-bathroom-extractor-fan-with-timer-for-4-100mm](https://www.desertcart.be/products/48411030-domus-sdf100tb-bathroom-extractor-fan-with-timer-for-4-100mm)

---

*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-10-16*