Installing a concealed HRV system requires a creating a recess in the perimeter wall where the ventilation system will be positioned, which needs to served by the power supply. The hole dimensions are available in a reserved area.
Flow30
The most affordable decentralised dual-flow wall-recessed HRV in the Helty range, specifically designed to deliver effective and cost-efficient basic ventilation.
The simplified HRV system, also in terms of price
Helty Flow30 is designed to optimise on-site activities and reduce system complexity in contexts requiring economies of scale and simple system planning, while guaranteeing performance comparable to centralised solutions.
The invisible solution
Advanced air filtration
Simplified installation and configuration
Also available with sensible heat recovery
Price upon request
The most accessible decentralised double-flow wall-recessed HRV in the Helty range, specifically developed to provide effective basic ventilation at reduced costs.
Basic configurations, easy to integrate
Flow30 is the continuous double-flow HRV that simplifies ventilation management by offering a predefined configuration, with reduced functions and only two operating speeds. Ideal for spaces up to 20 m², Flow30 provides a cost-effective and reliable alternative to ducted systems, ensuring superior acoustic insulation and air filtration performance compared to push-pull solutions.
Healthy air and mould prevention
Compact and essential, Flow30 is the ideal economical choice to ensure ventilation in small residential spaces, studios and offices, offering effective protection against mould and condensation at minimal cost. The standard ePM2.5 65% (F7) filter ensures air is filtered from fine particulates, spores, dust and allergens, effectively contributing to indoor air quality.
Easy to install, with sensible or enthalpy heat exchanger
Flow30 simplifies installation operations by integrating the HRV unit within the perimeter wall through a prefabricated installation kit, allowing fast installation and leaving only the front ABS cover with keypad visible. A smart and accessible solution that does not require ducting or false ceilings and allows work on site in reduced timeframes. The model also offers the possibility to choose between two heat exchanger types, sensible or enthalpy, to best adapt to the climate and the requirements of the environment to be ventilated.
More invisible, with window-side outlets
For even more discreet integration, Flow30 is also available with window-side air outlets. This configuration allows the installation kit to be fitted with the air outlets positioned directly on the window reveal, preserving the full integrity of the façade and ensuring seamless integration of the HRV system in any context.
Technical data
| Characteristics | U.M. | Value | ||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Airflow (1) | m3/h | 8/15/30 | ||||||||||||||||||||||||||||||||||||
| Airflow adjustment | night function + 2 settings | |||||||||||||||||||||||||||||||||||||
| Power consumption | W | 2/5/11.5 | ||||||||||||||||||||||||||||||||||||
| Supply voltage | V AC | 230 | ||||||||||||||||||||||||||||||||||||
| Max. current consumption (2) | A | 0.1 | ||||||||||||||||||||||||||||||||||||
| ||||||||||||||||||||||||||||||||||||||
1. In high-speed ventilation mode2. With 230 V AC supply voltage3. Measured on a 30 m² semi-anechoic environment at a distance of 3 m
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Frequently asked questions
Flow40 concealed HRVs require a perimeter wall with a minimum thickness of 335mm. Flow70 and Flow100 systems require perimeter walls with a minimum thickness of 460mm.
An enthalpy heat exchanger recovers both the sensible thermal energy (the heat) and the latent energy (the humidity) from the air flow. It has the advantage of offering better overall energy efficiency without over-drying the incoming air.
Certified quality and performance
The performance of the Helty ventilation systems are recognized by the Casa Clima Quality Seal and have obtained the SIMA and BioSafe validations
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