Electrical Regulations Bathroom Extractor Fans

Extractor fans installed within zone 1 must be at least ipx4.

Electrical regulations bathroom extractor fans.

Bathroom exhaust fan venting code summary section r303 3. In addition background ventilators trickle ventilators must comply with the total ventilator area mm depending upon the design air permeability. Recommended extractor fans which are rated to a minimum of ipx5 include. In new build bathrooms with a bath and shower mechanical ventilation is required in the form of an extractor fan.

Hot water central heating or underfloor heating is the safest way of keeping a bathroom. Current building regulations require all kitchens and bathrooms to have adequate air extraction. Zone 2 zone 2 for a bathroom is the same height as zone 1 2 25m extended to 0 6m around the bath. Exhaust fan most communities require bathrooms to have either a window that can be opened or an electric vent fan that will exhaust moisture from the bathroom to the outdoors.

Applicable to both zone 1 or 2 a selv fans with a rating of ipx5 or above may also be installed in these areas. An extractor fan is essential and will help cut down steam in the bathroom. In this regard electrical extractor fans are a relatively cheap and easy to fit solution to quickly freshening a room without the potential for draughts. For utmost safety the transformer or power supply pack should be installed outside the bathroom area.

Building regulations require an adequate means of ventilation. Extractor fans are located in the bathroom ensuite kitchen and utility room. Electrical requirements a point to note is that for any bathroom extractor fan installation to be successful all the circuits in bathrooms and showers need to have rcds. When this section is adopted by a community it essentially says that for venting purposes bathrooms must have windows that open.

The bathroom zones for extractor fans uk electrical regulations divide the bathroom into 4 zones. Now we all know that electricity and water don t mix thus the need for the zones. Extractor fans installed within zone 1 must be fitted with 12v selv motors with the selv transformers and isolators fitted outside of zone 0 1 2. They must comply with providing the following ventilation airflow rates for intermittent extract minimum rates.

This is because new builds are built to be more airtight so natural ventilation is much lower the ventilation requirements for a bathroom are 15 litres per second 54m3 per hour you might be wondering what the last point means. Some communities may require a vent fan even if there is a window in the bathroom. Initially it was a compulsory requirement to have a local supplementary bonding but this requirement has been relaxed provided you have met the rest of the requirements.