PIV Flatmaster Positive Input Ventilation Unit
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MVA40-PIV Units (Positive Input Ventilation)-Wall Mounted PIV Units (2).jpg
PIV Flatmaster Positive Input Ventilation Unit
(MVA40) Flatmaster
£255.00 Per Unit
Airflow
60 L/s
Noise
38dB
Energy
A+

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The Nuaire Flatmaster is the go-to wall-mounted Positive Input Ventilation (PIV) solution for properties without loft space. By delivering a continuous supply of clean, filtered air, Flatmaster dilutes indoor humidity, odours and pollutants and gently drives stale, moist air out through natural leakage paths. The result is a drier, healthier home with clearer windows and reduced risk of mould. Built by Nuaire, a trusted name in UK ventilation, Flatmaster uses a high-efficiency EC motor for whisper-quiet, low-running-cost operation. The long-life filter is simple to access for quick maintenance, and models with an integral heater lightly temper incoming air for comfort on cooler days. Smart control options (humidity/temperature-responsive trickle & boost) react to peaks after showers or cooking, maintaining ideal moisture levels throughout the day. Choose Nuaire Flatmaster to tackle condensation at source and improve indoor air quality across your flat, apartment or basement.

Key Features

  • Brand: Nuaire — Flatmaster wall-mounted PIV

  • Designed for flats, apartments, basements and loft-less properties

  • Controls humidity to prevent condensation, damp and black mould

  • Filtered fresh air supply helps reduce dust and allergens

  • Quiet, energy-efficient EC motor keeps running costs low

  • Optional integral heater for comfort in colder months

  • Smart sensors with trickle & boost ventilation modes

  • Quick-access, long-life filter for easy maintenance

  • Single diffuser provides whole-home impact from a discreet unit

  • Helps meet UK Building Regulations Part F ventilation guidance

What’s Included

  • Nuaire Flatmaster wall-mounted PIV unit

  • Filter cartridge (pre-installed)

  • Mounting kit & fixings

  • Duct connection and ceiling/wall diffuser (model dependent)

  • Installation & user instructions

Ideal For

  • Flats & apartments without lofts

  • Basements, HMOs, garden rooms and refurb projects needing continuous ventilation

Installation Notes

  • Fit to an external wall per Nuaire instructions; provide a fused spur for isolation

  • Locate the diffuser centrally (hallway/landing) for even airflow

  • Maintain background vents to aid balanced supply throughout the dwelling

Maintenance

  • Inspect/replace the Nuaire filter at recommended intervals

  • Wipe external surfaces; keep diffuser free of dust

  • Test boost and controls periodically

Technical Overview

  • Mounting: Wall-mounted (central diffuser)

  • Motor: EC (continuous trickle + boost)

  • Duct size: Ø100–125 mm (model dependent)

  • Filter: Replaceable long-life

  • Heater: Optional integral (selected models)

  • Electrical: 220–240 V AC, fused spur (see datasheet for rating)

  • Finish: Durable, easy-clean polymer casing


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