![]() Do Bathroom Extractor Fans Need to Vent Outside? Just make sure to turn off the mains power before you remove the old fan. If wiring needs to be installed to fit your bathroom extractor fan then it is recommended to hire a professional electrician to make the hole and install the wiring.īut if you're replacing a standard-sized extractor fan, the hole will already be present and you can do this yourself on a DIY basis. This helps to ensure that all steam has been extracted. Some fans with humidistats will turn on automatically when the humidity in your bathroom reaches a pre-set level (and turn off when this level falls), while others come with PIR (Passive Infra Red) sensors which operate automatically when somebody enters the room.įans with timer models allow it to run for a set period of time even after you've turned your shower and lights off. A fan might come with a pull cord for activation, or it can be wired to turn on and off via your light switch. ![]() You can also look out for fans with silent running ball bearing motors, which help to reduce noise further.Įxtractor fans have to be turned on to start moving air and turned off to stop, and a number of features can affect how this happens. So if noise is a big concern for you then try to avoid fans at 30db and under. The size of the extractor will determine where it can be placed, and whether or not it can fit in your bathroom.īathroom extractor fans can be loud. Most models far exceed the 15 l/s or 54 m3/hr minimum requirement in the Building Regulations, although those with higher extraction rates tend to produce more noise.ĭomestic extractor fans come in two sizes: 4-inch /100mm and 6-inch / 150mm.Ī 4-inch model will suffice for most households, whereas 6-inch machines are appropriate for larger bathrooms (generally greater than 9m2), or those which are frequently used by larger families or households. The larger bathroom you have, the higher the rate you'll need. This specifies how much air can be moved in a time interval. If you've decided that a bathroom extractor fan makes sense for your house, then look for these factors when making your choice. How to Choose the Best Bathroom Extractor Fan They are effective options for extra-long distances of 40 metres or more to your nearest external wall.
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