ducting | Page 3

ducting

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  1. S

    100mm Mixed flow extract fan ducting prob

    I've fitted this into my new place an old bungalow and it's extracting from the bathroom. It performs great but the ducting gets full of water, I mean Like loads ! I rwalised when the fan started to make a funny noise. DO I need a fall on the ducting like you do on a waste pipe ? I'm...
  2. D

    red ducting in basement for moving mains

    Hi all. hope someone can point me in the right direction.doing a rewire for two flats above a shop which is straight forward enough. except the mains are being moved from the front of the shop to the rear. the dno want three switched fused isolaters installing at the rear and a 115mm red ducting...
  3. I

    inline shower fan

    hi need some advice. Recently fitted a 100mm 20w standard inline shower fan for a very small shower room. the fans stated extraction rate is 90m3 but it appears to have very little suction and the customer is stating that it isnt clearing the room when the shower is in use. Now i have checked...
  4. T

    Kitchen ducting system

    I'm after advice on where to find info on a "non mechanical air input ducting" to go above a extraction unit to allow to correct amount of air for the extraction unit to work correctly. Anyone heard of this and know where I would look I'm thinking of getting in a rep from expelair, before I do...
  5. C

    Sealing underground ducting

    What are the rules/best practice regarding sealing underground electrical ducting? Lets say you have SWA in a 50mm duct from a house to an outbuilding. What happens if you can't bring the duct up inside the building at one end? If you leave the end of the duct underground it's likely the duct...
  6. C

    Red 32mm service ducting?

    I have been asked by a client who is doing a self build if I know where to get "Red 32mm service ducting" and some 90 degree bends with a 450mm slow bend. The DNO have specified it for their service cables to run into the property. Any ideas on suppliers?
  7. R

    Hilti DD100 Diamond Core Drill advice.

    I have a job coming up involving fitting a residential cooker extractor hood and the appropriate ducting. The ducting will be going up through the ceiling first, then along under the floorboards, then back through the ceiling at the side of the room then along a wall above a row of kitchen...
  8. T

    Insulated ducting

    Does anyone know when you must use insulated ducting? I'm thinking the 4" duct wrapped in insulation then foil.. I remember being told only in lofts when attached to tile vents, but could be told wrong
  9. R

    Cables in ducting around a garden

    One of the builders I work for has been doing some landscaping in a large garden, and has asked me to do some outside lights, and a socket and light in a small shed. I turned up and realised all the landscaping is virtually finished, and he has layed the cables for me already. The thing is he...
  10. Y

    Ducting through flat felt roofs

    HI, I have a potential job that involves installing a fan to a bathroom. The plumber who is currently on the job says that the only way to duct the fan is out of a flat felt roof, as all walls face other rooms and above is a tiled bathroom floor that they don't want disturbed. This is a first...

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