Products

How to choose a silent double-flow VMC?

Noisy dual-flow ventilation can quickly become annoying in your home. How do you know this noise level when choosing your installation? What are the origins of these sounds in your ducts? Discover our expert's advice for enjoying a quiet home.

How to choose a silent double flow VMC

 

Why does my dual-flow VMC make noise? 4 reasons to know

Air flow too high

If your controlled mechanical ventilation is set to excessive power , this can cause excessive noise . It is therefore important to choose a VMC that fits well and is correctly adjusted to the surface area of your home.

Professional help during commissioning is recommended to avoid this inconvenience.

Low efficiency motor

Less efficient, smaller, low efficiency motors are more stressed because they are undersized. Result: a higher noise level and increased power consumption.

Poorly insulated and poorly installed ducts

Absence of insulation, duct network installed without attention to detail, these elements will ultimately result in poor air circulation which will cause inconvenience. Find our advice for successfully installing your VMC network and how to choose your type of duct .

Neglected maintenance

In the absence of maintenance , your VMC central unit, your exchanger as well as your network can become clogged. This will cause the engine to strain, much like your heart with blocked arteries.

Same result as poor installation, neglected maintenance causes excess electricity consumption and forces your VMC to strain, hence the greater noise .

@source: objectif15.fr

 

2 data to evaluate the noise emitted by a dual flow VMC

Acoustic power dB(A)

This is the noise measured under standardized laboratory conditions. There are 5 measurements taken :

  • Radiation from the ventilation box into the room
  • The noise measured at the outlet of the duct for blowing air inside
  • The noise measured at the outlet of the duct for the extraction of air inside
  • The noise measured at the outlet of the duct for the outside air intake
  • The noise measured at the outlet of the duct for the rejection of air outside

 

Sound pressure dB(A)

  • The acoustic radiation of the machine at 35 dB(A)
  • Acoustic radiation in living rooms at 25 dB(A)
  • This is the noise measured in real conditions in the rooms of the furnished accommodation once the entire installation has been completed.

3d view of a double flow vmc with its duct network The Passiv Haus label imposes 2 types of value not to be exceeded </strong>

To ensure that the sound pressure in real conditions respects these limit values, we check that the acoustic power emitted by the box (manufacturer's technical document or certificate), deducted from the acoustic attenuation of the silencer or soundproof distribution box, respects these values. boundaries.
The manufacturer's technical documentation should provide you with this information. We can also find data on the certification(s) linked to the products.


Note that the secondary distribution network and the furnishing of the room will further improve these performances.
A dual-flow VMC may be less noisy than another according to the technical data. But if no means of acoustic attenuation are installed, it may be noisier and exceed the comfort limit values imposed by the Passiv Haus label.


Last point, once installed, your VMC must be maintained regularly : remember to regularly change your filters in particular.

The care taken in installing the VMC and its network is a key element in having a quiet home.

 

Need other advice on choosing the right VMC?

Find our 7 recommendations for selecting the right dual-flow ventilation for your home

 

I consult expert advice

 

The quietest dual-flow VMC brands

  • Aldes
  • Brink Climate Systems
  • Atlantic
  • Zendher

The price of a complete system varies from €4,000 to €10,000 to install, with lower electricity consumption (if the work has been correctly carried out).

Beware of certain unscrupulous companies who take advantage of the Ma Prime Renov assistance to install a system in a hurry.

Don't forget that a good double-flux VMC, well installed, saves on heating and improves your comfort, particularly in the bathroom and kitchen. Ask specifically what type of ducts will be used when you get a quote.

 

Do you want to optimize your comfort?

I order my double flow VMC

 

 

To the main pageNext article
Comments

No posts found

Write a review