Net Zero Ventilation Solutions
Supplying fresh air into buildings utilising passive effects of wind speed or difference in internal and external air pressure is a sustainable and low carbon ventilation system with very low running costs, minimal moving parts, and a comfortable and healthy indoor environment.
Windcatcher technology incorporates more than just a passive stack system, with its unique design driving air into the space to generate a positive pressure within the room, which in conjunction with temperature differentials, assists in exhausting the stale air.
Applicable to educational facilities, offices and reception areas, visitor centres, prisons and restaurants.
Why WINDCATCHER?
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Innovative and robust modular construction
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Air flow optimised ducting design
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Extremely quiet operation
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Low running costs
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Remote data monitoring
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Reduces overall heating loads
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Comfortable environment during peak times
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Heat exchanger core – Windcatcher Zero model only
Natural Ventilation
The Windcatcher system encapsulates the prevailing wind, and turns that wind movement through 90° in to the space. Fresh air is brought into the room and stale air is expelled using the negative pressure on the leeward side of the Windcatcher as well as the buoyancy and stack effect of warmer air rising within the space.
Boost Fan
Utilising the PV panels the Windcatcher Zero can provide a boosted ventilation rate without the use of grid power. This ensures that even when there are periods of very low wind speed the ventilation rates required are met.
Heat Recovery
To avoid cold draughts, when the temperature of the outside air is lower than the internal, the Windcatcher Zero can deliver tempered air via the ‘Air to Air’ heat recovery core. The counter flow core enables efficient exchange of heat from the stale exhaust air through an ultra-thin aluminium membrane. The high efficiency core and low power fans automatically minimises the heating requirements whilst optimising air quality.
Cool Recovery
The Windcatcher Zero can maintain a greater level of comfort conditions compared to conventional natural ventilation systems. To keep an internal space cooler during hot periods The Windcatcher Zero can cool the incoming fresh air by utilising the ‘Air to Air’ heat recovery core. The efficient recovery of cold from the exhausted air reduces room temperatures when compared to natural ventilation or reduces demand on auxiliary cooling systems.
Natural Ventilation Mode
Dampers are opened, natural ventilation combined with openable windows expel stale air and ventilates the space with fresh external air.
Boost Fan Mode
Dampers are opened and mechanical fan operates to bring fresh air into the room. Especially useful in summer months.
Mixed Recirculation Mode
Dampers are opened, mechanical fan operates, stale indoor air is expelled, warm internal air is recirculated and tempers fresh external air via separate discharge pathways.
Night-time Cooling
Peak ventilation during summer nights removes warm air from the space ready for the next day.