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Hot air is less dense than cold and therefore when it rises it ‘floats’ on top of the cold, creating a ‘stack-effect’ in a building; this results in areas being heated from the top down. Typically, a temperature difference of up to 10°C can happen within a 10m high indoor space. Consequently, building HVAC thermostat settings can be reduced with associated reductions in energy costs, still with improved occupant comfort. Where cooling is required, ceiling fans provide an alternative to ‘energy and maintenance hungry’ air-conditioning systems.
These fans don’t cool the air but, set at a higher speed, they use the ‘wind chill’ effect to provide evaporative cooling for occupants. They can also work in conjunction with air-conditioning where the movement of air improves the effectiveness of the air-conditioning, meaning set-points can be reduced and equipment operation reduced. Your HVAC systems run less, comfort goes up and energy costs go down. This energy saving solution is suitable for open or drop ceilings.