Nuaire has a long and successful history in heat recovery and has been developing and manufacturing AHUs and packaged heat recovery solutions for many years.  This wide innovative range of packaged systems are used in all kinds of applications including Hotels, Healthcare, Retail, Schools, Offices & Public Buildings and Nuaire has worked in partnership with many clients over the years to develop specific solutions for their requirements.

In 2006 Nuaire led the way by launching a wide selection of packaged heat recovery units in horizontal and vertical configurations. The XBOXER packaged heat recovery are standardised solutions including thermal wheels, plate heat exchangers and run around coils with a duty up to 4.2m3/s enabling next day delivery on selected models.

In order to ensure quality control and optimum energy conservation, every commercial heat recovery system is manufactured at the UK Headquarters.

HOW IT WORKS

Heat recovery units are supply and extract systems delivering filtered fresh air into a building whilst extracting stale stagnant air from the interior.  Each unit will have a heat recovery element (either a thermal wheel, plate heat exchanger or run around coil) that is capable of transferring the heat that would otherwise be lost into the incoming air flow.

Thermal wheels are have 70-90% efficient and are often used on larger duties where replacing heat losses can be expensive.  Plate heat exchangers are typical between 60 and 70% efficient and due to their low profile are ideal for application in ceiling voids or where space is at a premium. Run around coil exchangers are used when you need to extract the heat from an exhaust airstream which may be dirty or contaminated, such as extract from a commercial kitchen. In this instance the run around coil uses water in the exhaust airstream coil to absorb exhaust heat energy which is then pumped to a coil positioned in the supply airstream where heat is transferred.

When needed, a commercial heat recovery system can be adapted to incorporate cooling, additional filtration and sophisticated control packages.  Heat recovery units come with Ecosmart control as standard which interfaces with the fan and heating system for simple localised fan control. Additional variants of constant pressure control, no control or TREND compatible controls are also available.

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