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On which wall thicknesses can concealed HRV systems be installed?

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.

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

  • CasaClima_VMC_Prodotto_Qualita
  • Biosafe.it Certification

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