Innovative Air Solutions
for a Healthier
Future

Decentralised ERV systems are single-room ventilation units that are installed directly into an exterior wall, eliminating the need for central ductwork entirely. Each unit handles supply and exhaust air independently, recovering heat from outgoing stale air and transferring it to incoming fresh air. This approach allows precise room-by-room climate control and is significantly simpler to install than traditional centralised systems with extensive duct networks.

Our units use a regenerative ceramic heat exchanger that alternates between absorbing heat from outgoing air and releasing it into incoming fresh air. The dense ceramic core has an exceptionally high thermal mass, allowing it to store and transfer energy with minimal loss. This counter-flow process achieves up to 97% heat recovery efficiency, meaning nearly all the thermal energy from exhaust air is recaptured and used to pre-condition the fresh supply air.

Both systems have their place, but decentralised ventilation offers clear advantages for retrofits and renovations. Centralised systems require extensive ductwork routed through walls, ceilings, and floors — which is costly, disruptive, and often impractical in existing buildings. Decentralised units need only a single wall penetration per room, install in hours rather than days, and give you independent control over each space. For new construction, centralised systems can work well, but decentralised is the superior choice when simplicity, speed, and flexibility matter.

A typical installation takes just 1 to 2 hours per unit. The process involves core-drilling a single hole through the exterior wall, mounting the unit, and connecting it to power. No ductwork, no suspended ceilings, and no major structural work is required. This makes decentralised ERV ideal for occupied buildings where minimal disruption is essential.

Maintenance is straightforward and minimal. Filters should be replaced every 6 to 12 months depending on the environment and air quality. The ceramic heat exchanger core is self-cleaning through its reversing airflow cycle and is designed to last the lifetime of the unit. We also offer a FilterKlub subscription service that delivers replacement filters directly to your door on schedule, so you never have to think about it.