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The Airvent Positive Input Ventilation (PIV) System is an essential solution for homeowners looking to combat persistent condensation and mould growth by improving indoor air quality. By drawing fresh air from the loft and distributing it throughout the property via a ceiling diffuser, it effectively pushes out stale, humid air. While it provides significant health and structural benefits, the installation requires roof space access and careful consideration of the existing loft insulation and ventilation to ensure maximum efficiency.
| Brand | Airvent |
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It is designed for residential properties with a loft space. Effectiveness can vary based on property size and air-tightness.
Filters typically require inspection every 6 months and replacement once per year, depending on the air quality in your area.
No, the integrated 500W heater is thermostatically controlled to operate only when the incoming air temperature is below a set threshold.
While the installation is straightforward, it involves electrical wiring. We recommend using a qualified electrician to ensure safety and compliance.
The system is designed for minimal noise; at low flow rates, it is barely audible in the rooms below.
Check that the unit is securely mounted to the loft joists and that there are no kinks in the flexible ducting causing turbulence.
Inspect the G4 filter for blockages and ensure the ducting is not crushed or restricted.
Verify that the flow rate is set correctly for your property size and ensure that internal doors are not blocking airflow paths.
The unit features dimensions of 365mm H x 930mm W x 425mm D and carries an IPX2 rating for moisture protection. Installation involves mounting the main unit in the loft, connecting the flexible ducting to the ceiling diffuser, and wiring the system into a fused spur. Maintenance is straightforward: the G4 filters should be inspected every 6 to 12 months, depending on local air quality, and replaced if clogged. Ensure the loft area remains free of stored items around the intake area to allow for unobstructed airflow.
