Extractor fan in bathroom

vikkic wrote:

My fairly large bathroom is fully tiled floor to ceiling with a small double glazed window. After a bath or shower the room is running in water even though I leave door open and have dehumidifier in hallway. I'm assuming this is due to the tiles and am currently replacing suite and tiles with aim of just tiles round bath/basin where needed. Will an extractor fan solve this problem, and if so am I able to install it into a double glazed window as I'm in a first floor flat with a flat above.

Cheers
Vikki

In my opinion there is one good solution and many other 'half a job' or dangerous solutions.

1st point. Always remove the humidity from the source room.
2/ Fit the extractor in the oposite corner of the room to the door.
3/ If the extractor is within reach of the bath or shower it must be low volt which means using a transformer. An alternative is having the fan in the middle of a long tube where there is a vent in the room but the fan itself is not in the room.
4/ You can switch a fan on manually, by light switch, by movement detector or use the pull cord, some have timers. However, none of these switch on methods guarantee the fans is on when the room is humid!!!!

ANSWER- Get a humidastat operated extractor. Wickes do a mains operated one but if you need a low volt one then Manrose make one of the cheapest. The manrose one has a transformer that you put above the door and contains the humidity sensor (around £70). In my opinion the best for a large room is the xpelair model LVCF20 part no. 91041AW. Similar to the manrose installation but the sensor is in the fan. The advantage of this one is that it is a centrifugal and has the extraction capability of twice a 4" conventional fan. It also comes with several mounting options (around £100).

Use this type of fan and it will always be on when you need it. You can always use the overide pull cord if you want it on when there is low humidity.
If you struggle to find one, just PM me.