A bit of technical explanation
How it Works
Introduction
How the PIV System Works
Positive Input Ventilation (PIV) is a mechanical system that fights condensation, dampness, and poor air quality in homes. It pulls fresh air from outside—through a loft in houses or a wall unit in apartments and basements—filtering it to remove dust and allergens. A low-energy fan pushes this air through a ceiling diffuser, creating gentle positive pressure that forces humid, stale air out via natural gaps like those around windows or doors. This steady airflow stops moisture from settling on cold surfaces, helping to reduce mold and keeping indoor air fresh.
Features
Key Components and Benefits
The PIV system filters incoming air to block out pollen, dust, mold spores, and even reduce radon levels, delivering it through a discreet ceiling diffuser with a fan adjustable from 20 to 60 liters per second. A 400-watt heater is designed to take the edge off cold air in winter but not to heat the home, while optional CO2 or humidity sensors tweak fan speed for efficiency. It helps prevent condensation and reduces mold, improves air quality, runs economically with low energy use, and protects your home from damp damage.
Practical Details
Installation, Maintenance, and Applications
Professional installation tailors the system to your home, positioning the intake unit and diffuser for optimal airflow. Maintenance is straightforward, with filter changes every 1-5 years and occasional fan or sensor checks. The PIV system is ideal for lofts, apartments, or basements—great for older homes with poor ventilation or modern, airtight ones with trapped moisture—and targets ventilation to control moisture, not structural issues like rising damp, which need separate fixes.