The Manrose BVF100T is a 4-inch (100mm) bathroom extractor fan from the Intervent Contractor range.
It features an adjustable over-run timer (1–20 minutes), allowing it to continue clearing steam after the room light is switched off.
Key Specifications
Extraction Rate: 85 m³/h (23 litres per second), making it suitable for bathrooms and toilets.
Noise Level: Quiet operation at approximately 41 dB(A) @ 3m.
Mounting: Versatile design suitable for either wall or ceiling mounting.
Build: Manufactured from high-gloss ABS thermoplastic for durability and easy cleaning.
Rating: IP44 rated (water-resistant) and double insulated (Class II), so it does not require an earth connection.
Wiring & Installation
Wiring Requirement: Because it has a timer, this fan requires a three-wire connection: Permanent Live, Switched Live, and Neutral.
Timer Adjustment: The over-run time is adjusted using a small screwdriver on the internal spindle. Turn clockwise to reduce the time and anti-clockwise to increase it.
| Mounting | Wall or Ceiling |
| Size | 100 mm |
| Brand | Manrose |