Electrical Regulations Bathroom Extractor Fans

Recommended extractor fans which are rated to a minimum of ipx5 include.

Electrical regulations bathroom extractor fans.

Current building regulations require all kitchens and bathrooms to have adequate air extraction. Extractor fans installed within zone 1 must be at least ipx4. 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. Now we all know that electricity and water don t mix thus the need for the zones.

They must comply with providing the following ventilation airflow rates for intermittent extract minimum rates. Bathroom exhaust fan venting code summary section r303 3. 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. 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.

Zone 2 zone 2 for a bathroom is the same height as zone 1 2 25m extended to 0 6m around the bath. An extractor fan is essential and will help cut down steam in the bathroom. The bathroom zones for extractor fans uk electrical regulations divide the bathroom into 4 zones. Extractor fans are located in the bathroom ensuite kitchen and utility room.

Some communities may require a vent fan even if there is a window in the bathroom. Bathroom heating all electric heaters and water heaters in a bathroom must be fixed and permanently wired. In addition background ventilators trickle ventilators must comply with the total ventilator area mm depending upon the design air permeability. 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.

Applicable to both zone 1 or 2 a selv fans with a rating of ipx5 or above may also be installed in these areas. Hot water central heating or underfloor heating is the safest way of keeping a bathroom. In new build bathrooms with a bath and shower mechanical ventilation is required in the form of an extractor fan. When this section is adopted by a community it essentially says that for venting purposes bathrooms must have windows that open.

These zones are determined by their proximity to water humidity and condensation and the likelihood of the electrical items installed in those areas getting wet. For utmost safety the transformer or power supply pack should be installed outside the bathroom area. Bathrooms must have windows.