EcopowerThe revolutionary ecopower® from Edmonds is a hybrid roof vent developed to ensure a constant supply of fresh air with minimum energy use. It combines natural ventilation with a computer controlled, high efficiency electric motor in a single unit to ensure consistent air quality and guaranteed performance when you need it.

ecopower ventilators are the world’s first true hybrid ventilators that will work in all conditions, even when there is no wind, to ensure a constant supply of fresh air.

The ecopower® can operate in either natural or power mode alone or in both simultaneously.
The natural ventilation mode functions through two processes. The first allows hot air to escape as a result of ‘stack effect’ buoyancy pressure. Hot air in the building rises and is released through the vent to be replaced by cooler ambient air. The second process results from the wind driving the impeller unit, thereby creating flow through centrifugal suction. The efficient power mode allows natural flow rates to be boosted by powering the Electronic Commutating (EC) motor to drive the impeller.

This provides on demand response to boost flow rates during periods of low wind speed or special ventilation needs.
In power mode, ecopower® has a flow rate 3-5 times greater than the equivalent size natural ventilator operating at average Australian capital city wind speeds.

What makes the ecopower® revolutionary is its patented design. The ecopower® design allows the wind turbine itself to be used as a centrifugal impeller, no separate fan is required when running in powered mode. The motor is installed in a direct drive configuration to the impeller, ensuring minimum flow obstruction for maximum air movement. It also results in lower maintenance costs.

The vent can be free spinning under wind load or power activated as conditions require. The motor can be activated by a simple manual switch or operation can be controlled by any digital measure, such as temperature, humidity, gas concentration level etc.

Features and Benefits

  • High efficiency ventilation at all times
  • Low energy costs
  • Significantly lower noise levels than axial fan vents
  • Advanced German EC motor technology
  • Edmonds vertical vane technology for higher performance (tested to AS4740 by Edmonds)
  • Light weight
  • Single phase power and low voltage (selected models) for easy electrical installation


The economy of natural ventilation combined with the reliable high extraction rates of a highly efficient powered ventilatormake ecopower® ideal in a wide range of applications including:

School classrooms
The ecopower® energy efficient hybrid ventilator was originally designed for classroom applications.
When ducted to the ceiling it allows natural ventilationof a classroom during the day to meet air quality standards (AS1668.2). The powered mode can then be activated by a timer later in the day to purge the room of heat build up and allow replacement by cooler night air. Th e cooler air settles into structures, providing thermal storage and helping to neutralise heat build up the following day. This results in more comfortable classrooms, reduced air-conditioning load and lower energy costs. The low operating noise of ecopower® ensures it will not impact residents living close to schools, even during late evening.

Factories and storage facilities
ecopower® provides reliable ventilation that can be controlled by a range of inputs to ensure the comfort and safety of personnel within these facilities. The sensor control feature allows the ecopower® to provide high performance natural ventilation which is power-boosted when certain conditions exist, such as higher temperatures or gas concentration levels.

Ventilation shafts on multistorey buildings
Noisy and relatively inefficient 3 phase powered ventilators have traditionally been used in these applications. ecopower® offers a high efficiency option with lower running costs and reduced environmental impact, along with lower operating noise levels.

Auditoriums and indoor sports facilities
ecopower® allows energy free wind driven operation during periods of lower ventilation demand with the option to switch to power mode and significantly increase the rate of extraction during high usage periods.

Find out more about ecopower™ ventilators