![]() Taylortwocities - the only reason I am considering a 12v fan is because I hope I can fit it myself, thus saving £150 odd. I'm not sure if it can support sufficient amps - I imagine any 12v fan will probably be using less than 30w? So 2.5A max going through the PIR? It looks like it will mount very nicely in the ceiling, and has adjustable timer and (presumably) sensitivity dials on the top, so they will be easy to access from the loft. This is the 12v PIR detector I was going to use: It's a walk in loft as I have a dormer extension with a bedroom and bathroom, so the loft is really easy for me to access, and there shouldn't be a moisture problem. To answer a few of your questions: I would be fitting the transformer to a wooden cross beam in my loft, which is about five feet off the ground, on the same beam that the main sockets are mounted, so I think they will be okay. Wouldn't it be easier to install an extractor fan that didn't have to be connected to the light switch/circuit in some way? I was also wondering why almost no extractor fans use a simple, dirt cheap PIR detector to turn themselves on? I have seen one on Ebay, but it was 240V and about £80. I presume that a 12v extractor fan is safer all round? Is it legal for me to do this? Or do I need an electrician, in which case I might as well have a 240v extractor fan running off the light circuit. The 12v PIR sensor has a timer, so I can make the extractor fan run on its timer, after I leave the bathroom. I want to connect the 12v transformer for the extractor fan to one of these sockets using a standard plug with a 3A fuse, and then some 12v cable to a 12v PIR sensor, which I will fit in the ceiling of the bathroom, and thence to the 12v extractor fan. (I have used them with a vacuum cleaner in the past, with no problems.) In my loft there are two mains sockets on one of the crossbeams, these were fitted by a different electrician some years ago, so I presume they are safe. I see that there are 12v extractor fans available, Toolstation do one for around £35. I paid about £180 for an electrician to fit one in my other bathroom a year or two ago, and I am hoping to fit one myself and save money. Cooking contributes to increased humidity, risk of fire, temperature and unpleasant smells. It is important to select reliable kitchen fans that will not fail in high temperatures.Hi, I want to fit an extractor fan to my second bathroom. It addresses the problems of HOGS – heat, grease, odours, smoke and steam not found in most other ventilation systems. This is to protect the residents from harm should they attempt to access the product in a wet zone, fulfilling housing providers' duty of care.Ī kitchen ventilation system treats the air from the kitchens. This can be interpreted in multiple ways but Vent-Axia and the wider installation community would recommend use of at least IPX5 fans for typical Zone 1 or 2 installations due to the potential use of the shower (presently or in the future) which could be considered a water jet.įor social housing, we would advise the use of IPX7 (SELV) products which reduce the voltage to 12V for additional safety. Zone 2 is the area up to 0.6m outside the perimeter of the bath and up to a height of 2.25m from the floor.Zone 1 is the area above the bath or shower, up to a height of 2.25m from the floor.Zone 0 is inside the bath or on the floor of the shower.IEE regulations specify the installation of fans within bathrooms and showers by identifying a series of zones: Fans need to be installed in accordance with the latest IEE Wiring Regulations 18th Edition (BS7671:2008). When choosing ventilation, it is important to think about the legislation surrounding bathroom installation and the safety of the residents. ![]() High moisture in rooms can also break down interior room materials such as wallboard, wall paint, and trim, not to mention the entry door.For a safe, healthy bathroom ensure there is appropriate ventilation. Warm, humid air, caused by running hot water for baths and showers, is a perfect environment for mold, mildew and microorganism growth. Without a bathroom vent fan, bathrooms are susceptible to excessive moisture buildup that increases the chances of damaging bathroom walls, floors, and ceilings, as well as bathroom fixtures. Bathroom ventilation performs multiple duties in a home - From removing moisture to eliminating bathroom odours, it is a system that draws out stale, impure and humid air out of the bathroom thereby improving the quality of indoor air.
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