Intermittent mechanical ventilation

A flexible solution for rapid elimination of humidity, condensation and odours from bathrooms, shower rooms, cloakrooms and toilets

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Simply Silent by GDHV - intermittent ventilation fan IMV
Simply Silent by GDHV - intermittent ventilation fan IMV
Simply Silent by GDHV - intermittent ventilation fan IMV

Intermittent mechanical ventilation (IMV)

Our intermittent mechanical ventilation (IMV) two speed fans help improve indoor air quality (IAQ) by eliminating moisture, condensation and odours from small spaces where humid air may be a problem. Each range in our intermittent Simply Silent™ family was designed for easy installation and comes with a 2 year warranty.  Our Simply Silent™ fans use our advanced Ghost™ Air Movement Technology to deliver near-silent running.

Benefits

 

Low-noise levels

All our two speed fans have been designed to keep the noise of the motor and movement of air to a minimum. Ghost™ Air Movement Technology uses long-life silent running motors and precision engineered components to avoid mechanical noise. Advanced airflow management eliminates irregular air flow paths and turbulence.

Ease of Installation

The flexible Simply Silent™ family of fans suits wall, ceiling, panel, or window installations. The twist and clip cover, large cable access, radial fixing points and level reference, and quick fit clamp make fitting quick and hassle free, regardless of the fan position. 

Compliance

Designed to help achieve the requirements of the current Part F of the Building Regulations for maintaining indoor air quality in specific spaces. Our fans are IPX4 rated for safe installation, and our LV range features Safety Extra Low Voltage (SELV) transformers. 

Simple maintenance

Our Simply Silent™ family of intermittent mechanical ventilation fans have been designed for simpler cleaning and easier servicing.  

 

Specification

Model C4SR DX100 LV100
Extract Performance (l/s) 15 / 21 15 / 21 15 / 21
Extract Performance (m3/h) 54 / 76 54 / 76 54 / 76
Sound Pressure Level (dBA@3m) 15 / 29 22 / 34 22 / 34
Specific Fan Power (SFP) (W/l/s) 0.42 / 0.33 0.40 / 0.32 0.37 / 0.56
Controls Includes timer, pull cord and humidistat/timer Includes timer, pull cord and humidistat/timer Includes timer, pull cord and humidistat/timer

Technical resources

For further technical information on our intermittent mechanical solutions, including BIM files, spec sheets and product guides, visit out technical resources page.

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CPDs

We have a number of CIBSE accredited CPDs on HVAC design, specification, and compliance. We also offer seminars that focus on ventilation in residential buildings.

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Contact us

To discuss your project in detail or to find out more about intermittent mechanical ventilation for your project, speak with one of our HVAC specialists.

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