How do timer extractor fans work?
They are often connected to the bathroom lights – when you turn the lights on, the fan operates. When you turn them off, the fan stops. An extractor fan with timer module is different. Like the basic model, they’re often connected to the bathroom lights, and when you turn the lights on the fan comes on also.
Do kitchen extractor fans use a lot of electricity?
A conventional kitchen extractor fan can use 200 watts of electricity constantly and may run for 5 hours per day.
Can I wire an extractor fan to a light switch?
Wiring an Extractor Fan With a Timed Switch That’s Turned on by an Existing Light Switch. Extractor Fans with an integral timer or timed switch need a 3 core and earth supply to allow the unit to run on after a light is switched off.
Does an extractor fan need a switched live?
In order to connect your new fan correctly you will need to run an extra live wire to the new fan. If the old fan was of the pull-switch type then the new live has to run from the light. (This becomes the switched live and turns the fan on and off).
Can I replace bathroom extractor fan myself?
Replace it Yourself Replacing an extractor fan is a relatively straightforward job that can be done by yourself, as long as if you have some knowledge of disassembly and the correct tools. The existing wiring and ducting will need to be in good condition. If not, you’ll need to repair these before commencing.
Where should I put my fan isolator switch?
The usual place is above the door as this is a switch not aimed at being used as often as light switches etc therefor putting it abve the door out of the way makes sense.
Can you wire an extractor fan to a light switch?
Can you leave a bathroom fan on all night?
Experts agree that you should not leave your bathroom fan on all night. You should only run the fan for about 20 minutes during and after a bath or shower. You especially shouldn’t leave it on at night. If it’s run too long, it can cause serious problems and become a fire hazard.
How long should extractor fan run on for?
According to the Home Ventilation Institute (HVI) the exhaust fan should run for at least 20 minutes after the shower has been used. This ensures that the proper amount of ventilation has occurred.
Can an extractor fan be wired to a plug?
If you can only connect with a plug you will need to connect both the permanent live and switched live together, the timer won’t then work of course, you’ll just have to use the switch on the socket (or pull the plug out!)
How often should you replace bathroom extractor fan?
about ten years
Routine cleaning will help extend the life of your exhaust fans, but they won’t last forever. The average life of a bathroom exhaust fan is about ten years, and kitchen hood fans tend to hang in there a little longer at around 15 years.
Should a fan isolator switch be on or off?
As far as isolation is concerned, the isolator must be in control of the person carrying out maintenance. Ie. in the same room, or lockable in the off position. Since we don’t like to put fan isolators and switches in bathrooms, that means it must be lockable in the off position.
Why do you need a fan isolator switch?
Usually, one from the light switch, and the other from your consumer Unit. Installing an Isolator which will switch off both these feeds is safer/convenient for conducting cleaning and maintenance. It means you can isolate the fan and leave the lights on.