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Bathroom Fan

Hello, I need to replace my bathroom fan, the one I have in old money is 12" wide, 10" long, can any help with what metric size I need please?
I'm hopeless with technology, in addition, I suffer with MH issues, what may appear simple, I struggle with, may I ask, please be patient, thank you

Comments

  • Myser
    Myser Posts: 1,907 Forumite
    Part of the Furniture 1,000 Posts Name Dropper Combo Breaker
    The duct or rear hole size is more important rather than the physical size of the fan unless it covers damaged tiles/wall.
    If my post hasn't helped you, then don't click the 'Thanks' button! ;)
  • Hi,
    here;s a handy GADGET.
  • Myser said:
    The duct or rear hole size is more important rather than the physical size of the fan unless it covers damaged tiles/wall.
    OK, thanks, so do I have to take the fan out and measure the actual hole?
    I'm hopeless with technology, in addition, I suffer with MH issues, what may appear simple, I struggle with, may I ask, please be patient, thank you
  • Myser
    Myser Posts: 1,907 Forumite
    Part of the Furniture 1,000 Posts Name Dropper Combo Breaker
    edited 20 December 2021 at 1:28PM
    Yes, if you aren't sure how to then post a photo on here.  Be sure to isolate power to the fan first.  There may be a fan isolator switch outside the bathroom, otherwise at the consumer unit.
    If my post hasn't helped you, then don't click the 'Thanks' button! ;)
  • OK, thanks, got it
    I'm hopeless with technology, in addition, I suffer with MH issues, what may appear simple, I struggle with, may I ask, please be patient, thank you
  • Apodemus
    Apodemus Posts: 3,410 Forumite
    Ninth Anniversary 1,000 Posts Name Dropper Combo Breaker
    Can you not find a makers name on the old fan?  I've replaced a number of these and it's always been a simple matter of replacing "like with like".

    It seems to be at this time of year that, with colder weather, the bearings on the fan motor shriek to indicate that they are nearing end of life, even if they tend to become quieter again as the weather warms up.
  • The fan size is not important what you need is the extraction rate m3/hr. size of bathroom in M3 (HxWxL) X10 air changes per hour =size of fan inm3/hr. However the fan is approx 300mm X 254mm and the easy way is to just check out wickes / screwfix etc sites to see what is available
  • plumb1_2
    plumb1_2 Posts: 4,395 Forumite
    Part of the Furniture 1,000 Posts Photogenic Name Dropper
    edited 20 December 2021 at 5:08PM
    12x10 is a large fan, is it a old xpelair? Sometimes the hole in the wall could be 8x8 (200mmx200 mm).
    You need to find out before buying a new fan with a 100mm duct, as it will need plastering/ bricking up?

    Plus best to buy a humidistat fan
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