PIV (POSITIVE INPUT VENTILATION)
PIV Units & Positive Input Ventilation Systems
Shop PIV (Positive Input Ventilation) systems at Order Electrical, providing a whole-home ventilation solution designed to introduce a continuous supply of filtered air and improve air circulation throughout a property.
A Positive Input Ventilation unit, commonly known as a PIV unit, works by gently supplying fresh, filtered air into the home. This creates a slight positive pressure that encourages stale, moisture-laden air to leave through natural leakage points and purpose-provided ventilation routes.
PIV systems are particularly popular for helping to manage condensation, excess moisture and stale indoor air. By improving air circulation and reducing humidity levels, an appropriately specified system can also help reduce the conditions that encourage condensation-related mould growth.
For houses with a suitable loft space, loft-mounted PIV units are commonly installed above the ceiling, with filtered air supplied into the property through a ceiling diffuser. Different solutions are also available for flats, apartments and properties without suitable loft spaces, depending on the product and installation requirements.
Selected Positive Input Ventilation systems may include features such as adjustable airflow settings, automatic controls, filters and integral heaters, allowing the ventilation system to be configured according to the property and occupants' requirements.
PIV can form part of a wider ventilation strategy alongside extractor fans and other ventilation equipment, helping maintain airflow throughout the property while local extract ventilation removes moisture and stale air from areas such as bathrooms and kitchens.
When selecting a PIV unit, consider the property type and size, installation location, required airflow, available loft space, control options and whether a heated or non-heated model is required. The existing ventilation arrangements within the property should also be considered when specifying the system.
Browse our PIV (Positive Input Ventilation) Systems below to find whole-home ventilation solutions for improving indoor air quality and helping control condensation and excess moisture.