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positive input ventilation systems and units - Residential properties - nuaire

Positive Input Ventilation (PIV) Units and Systems

Positive input ventilation (PIV) is the UK’s most popular low-energy whole home ventilation method. It looks to protect homeowners and tenants alike from the many harmful indoor air pollutants that can enter and remain within a home and lead to long-term health problems if not suitably resolved. Nuaire’s PIV units help you to breathe a little easier with the knowledge that the air in your home is filtered and fresh.

Positive Input Ventilation (PIV) Products

What is Positive Input Ventilation?

PIV is a highly effective cure for condensation dampness and its associated problems within residential properties. It pushes harmful air out of the home and replaces it with fresh, filtered air.

Invented by Nuaire in 1972, the technology is now installed in over a million homes. It’s tried, tested, and trusted.

How does Positive Input Ventilation work?

PIV works by drawing fresh air in through the unit that’s usually, but not always, installed in your loft. This air is then filtered and gently diffused at ceiling level, creating a positive pressure within the home that forces air pollutants out through the natural leakage gaps found in every UK property, both old and new.

When would you recommend using a PIV unit?

Positive input ventilation is a highly trusted, cost-effective, and simple solution to ensure clean air flows freely throughout your home, making poor indoor air quality a thing of the past. PIV units are used for a few different reasons, including the displacement of indoor pollutants, including stagnant and humid air. The installation of PIV units is generally recommended if you’re not looking to carry out a full renovation of your home yet require ventilation throughout the dwelling without removing any walls.

Does a PIV unit cure damp and condensation?

Condensation is a fast-growing problem: it’s estimated that one in five houses in the UK is poorly ventilated and at risk of streaming windows, mould growth and poor indoor air quality. The average family produces up to 10 litres of water daily through simple everyday tasks such as cooking, washing, bathing and drying clothes indoors.

New and modern homes are at risk of condensation: poorly heated homes are prone to condensation dampness. In contrast, well-insulated homes with double glazing or insulation can trap moist air inside the house. When it comes to curing damp and condensation, PIV is the most cost-effective whole home system in the market today: that’s why it’s trusted by so many homeowners and landlords across the UK.

How energy efficient are Nuaire’s PIV units?

Nuaire’s PIV units are incredibly energy efficient; that’s been a big focus for us ever since we invented this enduring and trusted ventilation strategy half a century ago.

Nuaire’s Drimaster-Eco range takes existing PIV technology a step further, effectively tackling the problem of condensation dampness whilst using up to 20% less energy than other competitors, meaning lower running costs and life cycle costs.

Nuaire’s PIV Units compared

Which PIV unit is the best fit for your home? Nuaire’s extensive range of PIV units protect all property types - please do contact us if you need further advice. 


Related Information

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If you would like to know more about PIV or have any queries about which model is suitable for your home. Contact our sales department today and they will be able to help.
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