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Positive Input Ventilation - Flatmaster
Positive Input Ventilation - Flatmaster Install Image
Positive Input Ventilation - Flatmaster
Positive Input Ventilation - Flatmaster Install Image
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Flatmaster Wall Mounted Positive Input Ventilation System

Flatmaster range has been specifically designed to ventilate homes without lofts. The system introduces air into the home at a continuous low rate, eliminating condensation dampness and forcing our indoor pollutants such as Radon gas and carbon monoxide. Allergens are kept to a minimum and outdoor pollutants such as pollen and traffic fumes are kept out. The results are a fresh and healthy indoor environment.



Flatmaster is a low-energy Positive Input Ventilation system (PIV), suitable for properties without loft space. It can also be used to ventilate basements, cellars and other areas that would benefit from a continuous supply of fresh, filtered air.

The unit comes with a 5 year warranty: 1 year parts and labour, remaining 4 years parts only (UK and Ireland only).


Cures Condensation

Reduces humidity in the air, curing condensation dampness and preventing mould growth

Healthy Home

Healthy Living Environment

Removes both indoor and outdoor pollutants from the home, overall improving indoor air quality


Ideal For Apartments

Designed to ventilate homes without lofts, the unit is compact and be concealed away in a convenient location


Meets Regulations

Meets Part F & L of Building Regulations as a low-energy ventilation strategy

High Efficiency

High Efficiency

Extremely low power consumption as low as 3 watts per hour

Positive Input Ventilation - Flatmaster Filter

Filter for Drimaster-Eco Range


Filters can be purchased through our Xpress website - Flatmaster replacement filters 

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If you have any questions or queries a member of the team are here to help.
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More information about Positive Input Ventilation (PIV)

what is a piv unit and how does it work - nuaire

How to Install Positive Input Ventilation Unit

Positive Input Ventilation is the most effective method of curing and preventing condensation dampness. Installed in over 1 million homes, PIV is the UK’s most popular method of low-energy, whole-home ventilation.

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