Thursday, April 11, 2024

What Features Ought To Be Evaluated Before Choosing an MVHR System?

Although the MVHR units’ levels of heat and energy recovery are typically high on the list of customer requirements, several other considerations should be made when determining which heat recovery unit is best for a given situation:

Unit acoustics:

When using a unit in an academy, university, or school, unit acoustics —especially break-out noise—should always be taken into account.

Energy efficiency:

The decentralised heat recovery unit’s operational efficiency is just as important as its heat recovery levels. High-efficiency fans are essential for reducing energy consumption.

Build quality:

Heat recovery unit construction is a frequently disregarded factor that has a big impact on unit performance and operating costs. The efficiency of MVHR systems increases with decreasing air leakage and SFP levels.


It is important to take into account the flexibility and configuration of the unit control, including any potential HMI interfaces, connectivity with the BMS, and even the availability of BIM files and models.


To build an MVHR unit for any application and environment, unit customization must be available. LPHW and electric heating coils, CO2, PIR, and temperature sensors, as well as pollen filters, are examples of optional additions. It is important to remember that many access possibilities and the unit warranty make maintenance simple.

Where and how are MVHR units installed?

The height of MVHR units has been engineered to be as low as possible, often between 250 and 600 mm. Normally, this would allow them to be situated above a suspended ceiling in the plenum region. As an alternative, if there was no dropped ceiling, the unit would need to be attached as high and unobtrusively as possible to the ceiling to provide maintenance access. The unit’s attractive design and the tiny diameter ductwork that goes with it could improve the location’s overall look and aesthetics.

Since an MVHR unit can be a big plant item, lifting should be done with an overhead crane that has straps and a spreader beam to ensure a damage-free, easy location. For the weight of the unit and the material it is being fastened to, the right bracketry and fasteners must be used while situating the device.

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