Indoor Air Quality
Which extractor fan should I get?
Building Regulations Approved Document F – Ventilation, sets minimum flow rates that a ventilation system installed in a wet room should be able to deliver when correctly installed. The minimum Airflow rates are as follows:
- 6 l/sec for toilets
- 15 l/sec for bathrooms
- 30 l/sec for utility rooms
- 60 l/sec for kitchens (30 l/sec in kitchens when the fan is installed adjacent to the hob – this is also the minimum flow rate expected from a ducted cooker hood)
Having considered the application of the ventilation required it is important to select the correct type of fan to meet the requirement fully.
Axial Fans are ideal for through the wall, ceiling and short run of ducting applications. While providing high performance from a slim profile, they work against limited backpressure. They are therefore recommended for use with flexible ducting not exceeding 1.5m in length with a maximum of two 90 degree bends.
Mixed Flow Fans for wall and ceiling combine the convenience of an axial fan size with the performance of a small centrifugal fan. Thus, they are ideal for short to medium duct runs.
Centrifugal Fans are quiet, powerful and suitable for wall and ceiling applications. They work well against system resistance making them the perfect choice for efficient performance for longer duct runs.
Safety Low Voltage Fans (SELV) Axial, Mixed Flow and Centrifugal Fan variants operating from 12v or 24volt supply which may be installed in accordance with IEE wiring regulations.
Choose the best for your project
Core Distribution partners with manufacturer Airflow to supply the all-Ireland market. Along with Airflow’s innovative and versatile ventilation systems, Core’s proficient technical expertise and optimal local distribution guarantee expert application advice and guidance to suit your installation needs and schedule.
Dan Fisher and Adrian McGarrity, Managing Directors of respectively Core Distribution Ireland and Core Distribution Northern Ireland, confirm, “We have worked with Airflow for over 10 years and have experienced a growing success on our respective markets. The outstanding quality of the products combined with the services provided by Core have been key in expanding this success. For example, we can help you select the correct type of fan for your installation requirements.”
Stylish and easy to install, the range of residential extractor fans you get from us comply with the stringent requirements of ISO9001 and ISO14001 while providing you with value for money.