Everybody needs fresh air, to keep them feeling fit, healthy and awake. The ability to provide fresh air from outside is an essential part of most building design. Despite regulations stipulating the amount of fresh air per person or for the cubic area that requires ventilation, many older buildings and some newer ones fail to meet these requirements.

Many modern buildings have a large amount of glass installed during construction for aesthetic reasons but invariably these windows do not open. Other properties often have sealed windows as a security measure, e.g. where basements are used as offices or for Health & Safety reasons such as windows in taller buildings.

Heat Recovery is an essential method for providing fresh air for a room without extracting the warm air. For example: If you have your heating on during winter, you will not want the heat extracted from the room as would be the case with a standard ventilation system. A ventilation system that is able to recover most of the heat whilst still providing fresh air is a sensible and energy-efficient option.

You also have the flexibility to turn the Heat Recovery option off should you wish to lower the internal temperature by bringing in ambient air from outside and extracting the warm air from the room, effectively reversing the usual operation of the system, e.g. in summertime or if you have heat generating equipment in the area.

Ventilation can also be used to extract chemical smells and vapours created during manufacturing processes or strong kitchen smells

in much the same way that a cooker hood operates, but with the advantage of bringing in fresh outside air at the same time.

Various internal vent types are available from budget options to more sophisticated designs if aesthetics are a concern, for example public offices or client-facing areas. You may even prefer to keep the pipework and vents visible as a feature of the room creating an industrial look. Our experienced surveyor will be able to assist you in deciding on the most appropriate system and look for the premises.

About the HRV System

Extremely compact – the small size of the HRV unit has been achieved by employing a newly developed High Efficiency Paper (HEP) heat exchange element, and using an optimised fan and airflow passage design.

The HRV units may be used in both residential and commercial applications.


The HRV retains up to 80% of the total heat or cooling energy, dramatically reducing energy costs. The HRV has the latest electronic control system that will automatically by-pass the heat exchanger when it senses that the outdoor air in the summer is cooler than the room air, providing free cooling.

The HRV unit may be installed in the loft space or in a cupboard in any position (horizontal, vertical or even upside-down) and connected to insulated, push-fit, flexible ducting system which delivers filtered and tempered fresh air via circular diffusers in each room.

Category: Ventilation

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