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What is an Energy Recovery Ventilator (ERV)?
Last Updated: 27 August 2025An Energy Recovery Ventilator (ERV) is a mechanical ventilation system that exchanges stale indoor air with fresh outdoor air while simultaneously transferring heat and moisture between the two air streams. This process improves indoor air quality (IAQ) and reduces energy consumption by pre-conditioning incoming air, making it more efficient than traditional ventilation systems. ERVs are...
What is the minimum intermittent extract rate for a utility room?
Last Updated: 26 August 2025The minimum intermittent extract rate for a utility room in the UK is typically 30 litres per second (l/s). This rate ensures effective removal of moisture and pollutants, maintaining air quality and preventing damp or mould issues. Compliance with Building Regulations Part F is essential for optimal ventilation performance. Understanding the Minimum Intermittent Extract Rate...
What Minimum Free Area Must Purge Ventilation Openings Provide in Habitable Rooms?
Last Updated: 26 August 2025In habitable rooms, purge ventilation openings must provide a minimum free area of 1/20th of the floor area, as per UK building regulations. This ensures adequate airflow to remove stale air and moisture, maintaining indoor air quality and preventing issues like damp and mould. Always consult local guidelines for specific requirements. Understanding Purge Ventilation Requirements...
Can I Convert a Cellar Without Planning Permission?
Last Updated: 26 August 2025Yes, you can convert a cellar without planning permission in the UK, but only if the ceiling height is at least 2.4 metres, there is separate access, and the space is not designated as a bedroom. However, building regulations must still be followed to ensure safety and compliance. Understanding Cellar Conversions and Planning Permission Converting...
Equivalent Area (mm2) to Airflow (l/s) Conversion Calculator
Last Updated: 4 September 2025Converting Equivalent Area (EA) in mm² to airflow in l/s is not a direct conversion because airflow depends on the air’s velocity, not just the area of the vent. EA measures the effective size of a vent, whereas airflow measures the volume of air passing through it per second. The relationship is governed by the...
How Should the FLUXO Units Be Positioned for Optimal Airflow?
Last Updated: 22 August 2025FLUXO units should be installed as high as practically possible on an external wall, ideally no more than 400mm down from the ceiling, to ensure efficient airflow and compliance with UK building regulations. Pairing units in habitable rooms enhances air balance, with one unit extracting stale air while the other supplies fresh air. Understanding FLUXO...
Why Might I Use the AUREN Automatic Mode?
Last Updated: 22 August 2025The AUREN Automatic Mode optimises air quality by adjusting ventilation based on humidity and twilight sensors, ensuring efficient heat recovery and energy savings. It operates at medium speed during the day and reduces to night speed when needed, maintaining comfort while minimising noise and energy consumption. Understanding the AUREN Automatic Mode The AUREN 160 Single-Room...
Why Might I Use the AUREN Manual Mode?
Last Updated: 22 August 2025Why do we crave manual overrides in an automated world? Because humans are terrible at trusting machines to read the room—literally. Sensors can’t detect your post-curry kitchen haze or your toddler’s impromptu bath-time tsunami. Manual Mode is your veto power, your “I know better” button. Manual Mode on the AUREN 160 allows you to bypass...
Why Might I Use the AUREN Surveillance Mode?
Last Updated: 22 August 2025The AUREN Surveillance Mode is ideal for maintaining air quality in unoccupied spaces, such as holiday lets or garden offices, by activating ventilation only when humidity levels exceed a set threshold. This ensures energy efficiency while preventing damp and mould, making it a smart choice for intermittent use properties. Understanding the AUREN Surveillance Mode The...
Why Might I Use the AUREN Extract Only Mode?
Last Updated: 22 August 2025The AUREN Extract Only Mode is ideal for rapidly removing stale air, moisture, or odours without heat recovery, making it perfect for kitchens, bathrooms, or high-occupancy rooms where immediate ventilation is prioritised over energy efficiency. The Science Behind Extraction Mode Extraction-only ventilation works by creating negative pressure within a room, forcing stale air out through...