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Mechanical exhaust ventilation – MEV – individual treatment

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Individual treatment for apartments or houses: high performance through affordable ventilation solution

 

With the promise to deliver the designed airflows, the MEV system is the Aereco’s most popular solution, from social housing associations to private owners. By proposing a humidity controlled air supply in the dry rooms and a humidity or presence – notably – control of the air exhaust in the wet rooms, the Mechanical Exhaust Ventilation system offers a very smart management of airflows in all rooms.
This system conciliates energy performance and indoor air quality through a very affordable solution, easy to implement in the new built as well as in refurbishment.
This system can be used either individually, with one fan per dwelling (multi-family buildings or detached house) or in collective management (multi-family buildings) through a common centralised fan.

Individual treatment for apartments or houses

In the mechanical exhaust ventilation with individual treatment, the fan is placed inside the dwelling. This treatment is applicable to individual houses as well as apartments. Placing the fan inside the dwelling has the advantage of making it directly accessible, a welcome advantage when it comes to maintenance.

As with collective MEV, the air in the dwelling is renewed by a fan (3). In demand controlled ventilation, the air extracted though the exhaust units (2) of the wet rooms determines the renewal of air in the entire dwelling. Humidity sensitive air inlets (1) then distribute the new air according to the needs of each main room. The demand controlled exhaust units distribute the airflow generated by the fan according to the needs of each wet room. Thus rooms with high new air requirements induce more airflow than empty rooms.

MEV: management of indoor air quality

The Aereco’s Mechanical Exhaust Ventilation system has been designed to optimise the indoor air quality through its smart air inlets and exhaust units that automatically detect the need. For example, during the night, the humidity generated by the occupants in the bedrooms is detected by the air inlets to adapt and increase the airflow, providing good indoor air quality. During the day, the humidity generated by a shower is detected then exhausted by the unit, automatically activated at the highest airflow.

Energy savings on heat losses as on electrical consumption

With mechanical exhaust ventilation system, the smart management of airflows enables to adapt automatically the ventilation to the needs in all rooms, at any time. When the dwelling is low or not occupied, the airflows are automatically reduced in all rooms, preserving the heat in winter and reducing the energy consumption of the fan. According to the conditions, the energy savings on the heating related to MEV can be estimated between 25% and 50%, and so the electrical consumption of the fan.

 

An amazing cost-performance ratio

One of the reason why the Aereco’s MEV system has become so popular is its amazing cost-performance ratio. Much more affordable (between 3 to 6 times) than top-of-the-range systems, this system is a perfect solution in residential applications for those who are looking for efficient and easy to implement solutions. A study realised by the Fraunhofer Institute IBP (Germany) has demonstrated that the efficiency of the Aereco’s Mechanical Exhaust Ventilation system is actually close to the one of MVHR, both on the indoor air quality aspect and on the energy side.

Ideal to retrofit and improve the performance of an existing standard MEV installation

This system uses the same ductwork, connexion holes and inlet slots as the ones of standard Mechanical Exhaust Ventilation systems. This means that the replacement of a standard MEV system by the Aereco’s MEV system is very simple. The inlets and exhaust units can directly be changed. No wiring is needed at all in general: the humidity sensor of the air inlets and exhaust units is mechanical (no electricity), and the other activation modes for the exhaust units can be either mechanical or on battery. The exhaust fan has just to be changed for a constant pressure one, as proposed in the Aereco range. There is no need to balance the ductwork nor to set the components: the system automatically adapts the airflows.