Positive input ventilation (PIV) is an increasingly popular home ventilation system in the UK. Quick and easy to install, they offer exceptional protection against common indoor air pollutants, providing residents with a constant supply of fresh and filtered air. The system is one of the best ways to improve ventilation in your property. The device easily removes unwanted stale and humid air, which cause various issues like condensation and damp. Easy to install and affordable to run, a PIV device will cure a property of major issues like condensation and damp, leaving you with clean and healthy air year-round.

Loft Mounted PIV Units

Loft mounted PIV Unit

Click below to view our range of loft mounted PIV units for homes with a loft space from a variety of manufacturers.

Wall Mounted PIV Units

Wall Mounted PIV Units

Click below to view our range of loft mounted PIV units for homes with a loft space from a variety of manufacturers.

What is Positive Input Ventilation?

PIV is a home ventilation system that promotes healthier indoor air quality. The device removes stale and humid air from the property, replacing it with fresh, clean air. By removing stale and humid air, a PIV helps to avoid common household issues like condensation, damp, and mould.

How Does Positive Input Ventilation Work?

A PIV system is installed inside of a property, either in the loft area or mounted on a wall. Once installed, the PIV unit draws in fresh air and filters it through its system. An air heater tempers the fresh air, then diffuses it throughout the property at ceiling level.

By tempering the air, the PIV creates a positive air pressure that actively removes stale and humid air through leakage gaps naturally present in UK properties.

Why Should You Use Positive Input Ventilation?

The biggest advantage of using PIV is to remove indoor pollutants like stale and humid air, which cause issues such as condensation and dampness.

Properties throughout the UK are designed to provide excellent insulation, which is understandable given the colder conditions we experience. However, this improved insulation comes at the cost of poorer ventilation.

Poor ventilation causes various issues for a property, namely a build-up of condensation due to high air humidity. When indoor air is too humid, it causes a build up of condensation across various surfaces any time there is a decrease in air temperature. Over time, areas most affected by condensation see a build up of mould spores that greatly reduce indoor air quality.

PIV targets all these issues, removing indoor pollutants like humid and stale air from your home, reducing the risk of mould and damp development. This is especially useful for people dealing with respiratory issues like asthma, which can be worsened by condensation, mould, and dampness. Plus, a PIV system is easy to install, energy efficient, and potentially reduces energy consumption by better circulating wasted heat from your radiators.

Does a PIV Unit Help with Damp and Condensation?

Yes, a PIV unit’s main function is to improve air ventilation, so is an effective treatment for damp and condensation, problems that affect old and new properties alike.

For example, older homes with low quality heating are susceptible to condensation dampness. Conversely, newer homes with better heating and insulation trap more moisture in the air, causing the development of condensation, mould, and dust mites.

By removing stale and humid air from the property, a PIV actively targets damp and condensation. It’s one of the most efficient and affordable ways to cure damp and condensation, making PIV systems a worthwhile investment for any property.