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Double flow ventilation system

The double-flow mechanical ventilation system significantly improves indoor air quality, provides excellent thermal comfort in the living space, and helps reduce energy bills. France Ventilation offers a wide range of double-flow ventilation systems, including self-regulating, humidity-controlled, and high-efficiency models from Unelvent and Vortice brands.


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Double flow ventilation system

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Online promotion
Centrale 2 flux extra plate FLEXEO 210 RD ( cde radio) Extra-plate , échangeur haut rendement, moteurs basse consommation - UNELVENTGarantie 3 ans
Ref. VG157
Original price was: 3241,50€ incl tax.Current price is: 2769,60€ incl tax.
Ref. VG145
3178,00 incl tax
Ref. VG151
2691,00 incl tax
Ref. VG166
2778,00 incl tax
Online promotion
VMC Double flux NETI HR 300 haut rendement, Axelair Vortice VDFTN (10933)
Ref. VG250
Original price was: 2835,60€ incl tax.Current price is: 1914,00€ incl tax.
Online promotion
Orka BP double flow ventilation for renovation, 100% bypass, wired, 4 bathrooms
Ref. VG238
Original price was: 1047,00€ incl tax.Current price is: 799,50€ incl tax.
Online promotion
ORKA HP high efficiency heat exchanger 92%, double flow unit
Ref. VG239
Original price was: 1410,00€ incl tax.Current price is: 1083,00€ incl tax.
Online promotion
Orka BP double flow CMV with special renovation kit, wired, 4 bathrooms
Ref. VG285
Original price was: 1593,00€ incl tax.Current price is: 1218,00€ incl tax.
Online promotion
Airò Breath 350 portable air purifier, up to 50m2 - AERTECNICA
Ref. VG284
Original price was: 426,00€ incl tax.Current price is: 299,00€ incl tax.
Online promotion
Unelvent Airpur 2N air purifier, for surfaces up to 50 m2, fibre filters, H13 and carbon brush, Unelvent 659673
Ref. VG278
Original price was: 490,20€ incl tax.Current price is: 375,30€ incl tax.
Online promotion
Unelvent Airpur 360° air purifier - Up to 50 m2
Ref. VG283
Original price was: 1723,20€ incl tax.Current price is: 1320,00€ incl tax.
Online promotion
ALDES - Inspir home SC 240 classic right
Ref. VG184
Original price was: 4262,40€ incl tax.Current price is: 3026,10€ incl tax.
Online promotion
ALDES - Double flow ventilation and air purifier INSPIRAIR HOME SC 240 Classic left. 2-year warranty. House up to 140 m2
Ref. VG172
Original price was: 4262,40€ incl tax.Current price is: 3027,00€ incl tax.
Online promotion
ALDES - Double flow ventilation and air purifier INSPIRAIR HOME 370 Classic - 2 year warranty - House up to 250 m2
Ref. P_VG174
3537,00 incl tax
Online promotion
ALDES - Double flow ventilation and air purifier INSPIRAIR HOME SC240 PREMIUM - 2-year warranty - House up to 140 m2
Ref. P_VG168
3687,00 incl tax
Online promotion
ALDES - INSPIRAIR HOME SC370 PREMIUM dual flow air handling unit and air purifier - 2-year warranty - House up to 250 m2
Ref. P_VG171
4248,00 incl tax

How to choose a double-flow mechanical ventilation system?

Choosing a double-flow mechanical ventilation system requires considering several factors.

The efficiency of the system determines the amount of heat recovered by the heat exchanger. A higher efficiency allows for better heating of the home while reducing heating costs. France Ventilation offers high-efficiency double-flow VMC units suitable for small and large homes. The IDEO 325 VMC unit, for example, features a high-performance heat exchanger with a 92% efficiency, making it ideal for new homes ranging from T2 to T9 or larger.

The airflow rate of the VMC determines the volume of air supplied. It should be determined based on the number of humid rooms where air will be extracted and the number of living spaces where air will be distributed. Maintaining a balance between incoming and outgoing air is crucial to avoid issues of pressure imbalance in the home. When considering airflow rate, it’s important to choose between an autoréglable VMC, where the airflow remains constant, or a hygroréglable VMC, where the airflow adjusts based on the humidity level in the room. The hygroréglable option tends to be more energy-efficient.

Some double-flow VMC systems are equipped with a By-pass feature. This allows the ventilation system to adjust the indoor temperature based on the season. The By-pass system helps cool the rooms in summer and warm them in winter.

Where to install a double-flow mechanical ventilation system?

A double-flow mechanical ventilation system is more effective in homes with very good thermal insulation. It is therefore ideal for newly constructed homes with stricter thermal and insulation criteria. For example, in passive houses, this type of mechanical ventilation is mandatory.

Furthermore, the double-flow ventilation system should be installed in an easily accessible location. Its placement facilitates maintenance tasks such as filter replacement, inspections, and possible repairs.

Additionally, to avoid noise disturbances, it is not recommended to install your mechanical ventilation system near bedrooms.

Quelle gaine utiliser pour une VMC double flux ?

A double-flow mechanical ventilation system consists of a network of two ducts. This network allows for the circulation of heated air to be distributed throughout the different rooms. For this purpose, these ducts should have excellent thermal and acoustic insulation. When installing a double-flow ventilation system, it is preferable to use rigid and smooth ducts. In cases where space is limited, oval conduits are available to facilitate installation. Additionally, the diameter of the ducts should match that of the vents and connections.