Bathroom Fan Regulations

Check before you choose it.

Computer fan loud then quiet. This has stopped working and i purchased a new extractor which is rated ip45 230v. All municipalities have different requirements but some do not draw a hard line on requiring exhaust fans. Determine the required cfm for your bathroom fan.

The interior of the bath or shower tray. The bathroom zones for extractor fans uk electrical regulations divide the bathroom into 4 zones. Vent axia selv fans are ipx7 which makes them the safest option available and with a selv supply offers complete peace of mind.

Hi we had a 12v bathroom extractor with a transformer above it situated in zone1 above the end of the bath 23m from the floor. Bathroom extractor fan regulations. Vent axia recommends the use of ipx5 fans in the bathroom zone 1 and offers a range of ipx5 fans which also meets the regulations.

Classification of zones zone 0. Now we all know that electricity and water dont mix thus the need for the zones. An effective bathroom fan should be capable of replacing the entire volume of air 8 times per hour or every 75 minutes.

Interestingly enough if there is a window in the bathroom then the current setup complies with regs as you can work on the fan using daylight. Extractor fans are located in the bathroom ensuite kitchen and utility room. If you have an old bathroom with only a window as a source of ventilation it might still be a good idea to provide extra ventilation.

Surprisingly bathroom fans are not required by some building codes. Trickle vents in the windows. A new bathroom should have a fan which extracts at a rate of at least 15 litres per minute and continues to run for 15 minutes after the light has been switched off.

Or greater or by mechanical means a bathroom vent fan 20 continuous or 50 cfm intermittent vented to the. To arrive at your required cfm simply divide your bathrooms volume by 75. 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.

The model building codes adopted by most jurisdictions typically require bathroom ventilation to be provided either by an operable window 3 sq. Bathroom code does address the issue of moving odor and moisture laden air from the bathroom to the outside. It is wired incorrectly the whole idea of a fan isolator is to isolate the fan from the lighting circuit.

Building regulations state that bathrooms must be ventilated via a window or extractor fan you may want to use both. It is pretty much standard for bathroom exhaust fans to meet these requirements though it should be stated in the product description of your fan.