Mechanical ventilation systems are installed in new build and refurbished houses and flats where natural ventilation is insufficient to supply fresh air, and remove indoor pollutants and excess moisture. Read More

The most energy efficient system is mechanical ventilation with heat recovery (MVHR). Heat from the warm air that is being extracted is passed to the incoming fresh air through a heat exchanger. MVHR minimises heat loss, reducing heating costs.

Mechanical extract ventilation (MEV) is similar but doesn't make use of a heat exchanger.

Positive displacement ventilation (PDV), also known as positive input ventilation, circulates the warm air that builds up in loft spaces. This displaces stale, moisture-laden air, which leaves through normal air leakage points.

Most mechanical systems are centralised whole house systems, but single room systems, such as decentralised sill ventilators, are also available.

For ventilating kitchens, bathrooms and utility rooms, extractor fans are commonly used. 

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Mechanical ventilation units - helping you find the best solution for your project.

  • Barkell: Therm-X HRFL II heat recovery and ventilation unit
    Therm-X HRFL II heat recovery and ventilation unit
    Barkell
    HRFL II is the next generation, all-in-one compact heat recovery and ventilation system designed for false ceiling installations. It is a fully packaged solution which benefits from a compact, slim design to suit the...
  • TROX UK: Construction of TROX UK's new warehouse is completed
    Construction of TROX UK's new warehouse is completed
    TROX UK
    Construction of a new storage and distribution building for TROX UK on Caxton Way in Thetford has been completed and officially handed over by the project team. Designed by Rees Pryer Architects and built by Mixbrow...
  • Barkell: Therm-X HR85 heat recovery and ventilation unit
    Therm-X HR85 heat recovery and ventilation unit
    Barkell
    The Therm-X HR85 range (thermal wheel) is a compact rotary heat recovery and ventilation system with top or side; right or left connection configurations for internal or external use. Highly efficient and with near silent...
  • Barkell: Therm-X HRFL heat recovery and ventilation unit
    Therm-X HRFL heat recovery and ventilation unit
    Barkell
    The Therm-X HRFL is a compact and efficient heat recovery and ventilation system (HRV). Specifications: high heat recovery efficiency of up to 93%; exceeds ErP 2018 requirements; achieves SFP of 1.5 W/l/s; available in 3...
  • Barkell: Therm-X HR95 PHE heat recovery and ventilation system
    Therm-X HR95 PHE heat recovery and ventilation system
    Barkell
    Therm-X HR95 is a compact PHE heat recovery and ventilation system with horizontal and vertical configurations for internal or external use. The HR95 is a packaged MVHR heat recovery solution for mechanical supply and...
  • Whitesales® Rooflights and Accessories: T-Vent roof membrane breather vents
    T-Vent roof membrane breather vents
    Whitesales® Rooflights and Accessories
    T-Vent roof breather vents are made from EPDM or PVC-u. They are designed for application on built up or asphat roofing, where the membrane is laid on concrete screeds. T-Vent roof breather vents enable water vapour to...
  • Monodraught: HTM F+ hybrid thermal mixing ventilation system
    HTM F+ hybrid thermal mixing ventilation system
    Monodraught
    Monodraught's Hybrid Thermal Mixing (HTM) system is designed to provide natural ventilation, hybrid ventilation incorporating mixed tempered air for winter periods with the ability to provide secure night-time cooling and...
  • Aermec UK: ERSR with high efficiency rotary heat exchange
    ERSR with high efficiency rotary heat exchange
    Aermec UK
    The units of the ERSR series are designed to satisfy the temperature and humidity comfort and ventilation requirements typical for public areas. The units are characterised by a high efficiency low pressure drop rotary heat...
  • Aermec UK: TRS Heat recovery unit with enthalpic heat exchanger
    TRS Heat recovery unit with enthalpic heat exchanger
    Aermec UK
    These units allow the extraction of a fixed amount of air from the room to be replaced with fresh air. Static type heat recovery unit with high efficiency in counter-flow, consisting of flat sheets of special paper. This...
  • Aermec UK: ERS High efficiency Heat recovery unit, static recovery
    ERS High efficiency Heat recovery unit, static recovery
    Aermec UK
    The units of the ERS series are designed to satisfy the temperature and humidity comfort and ventilation requirements typical for public areas like bars, restaurants, offi ces, meeting halls. The unit uses a high efficiency...
  • Airflow Developments: Duplexvent 72 EC heat recovery systems
    Duplexvent 72 EC heat recovery systems
    Airflow Developments
    Duplexvent 72 EC is a ventilation unit for use in residential and light commercial applications. Using state-of-the-art technology, it is designed to provide both essential ventilation and to save money through its heat...
  • Airflow Developments: Duplexvent 150 SE ventilation units
    Duplexvent 150 SE ventilation units
    Airflow Developments
    Duplexvent 150 SE is a ventilation unit that is suitable for residential and light commercial applications. It is controlled either automatically with an intelligent Duplexvent SED control system, or electronically. The unit...
  • Airflow Developments: Duplexvent commercial ventilation units
    Duplexvent commercial ventilation units
    Airflow Developments
    Duplexvent commercial ventilation units are large systems that are suitable for installation in swimming pools, as well as retail, commercial and industrial buildings. The units provide continuous mechanical ventilation with...
  • Timberwise: EnergySaver DriAir loft air recirculation system
    EnergySaver DriAir loft air recirculation system
    Timberwise
    The EnergySaver DriAir System is designed to provide a reliable solution to condensation and air quality problems within the home. The systems works by introducing fresh, dry, filtered ambient air into the property. This...
  • Airflow Developments: Airovent HVS 10 ventilation units
    Airovent HVS 10 ventilation units
    Airflow Developments
    The Airovent HVS 10 ventilation unit provides low-cost ventilation for new and refurbished houses, flats, apartments and sheltered accommodation. Installed in lofts or cupboards, the unit provides efficient, low-noise...
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Mechanical ventilation units- helping you find the best companies for your project.