1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

shower extractor ducting to water tank..?

Discussion in 'Electrics UK' started by benpals, 21 Nov 2009.

  1. benpals

    benpals

    Joined:
    21 Nov 2009
    Messages:
    1
    Thanks Received:
    0
    Location:
    Middlesex
    Country:
    United Kingdom
    Ok not orhodox but idea.

    Ceiling based extractor , fan in loft with ducting looking for somewhere to duct exit to.

    Cannot punch hole through wall, and access to the eaves is near impossible and very narrow gap constricting the fle xible ducting, can be done but constriction is a concern. Re roofing for an exit tile is a no go.

    Looking at the principle of a DIY large scale condensing box.

    Thought maybe run the ducting into a bespoke polystyrene lid for a metal cold water tank and at the other end of bespoke lid make a small air exit hole to equalise pressure. Idea such that the steam ducts into the much colder water tank, condenses in the tank on the cold water . Air pressure is relieved via the small hole made in the polystyrne, also dont want to over heat fan through lack of airflow. Tape lid to water tank.

    is an idea only and probably aim to mount the fan high up so that the exhaust runs down wards into the tank. Maybe aquaboard better than polystyrene but principle is same.

    ideas v welcome.

    tks
     
  2. Sponsored Links
  3. RF Lighting

    RF Lighting

    Joined:
    31 Mar 2006
    Messages:
    19,990
    Thanks Received:
    1,354
    Location:
    Leeds
    Country:
    United Kingdom
    It won't work.

    You'd need a 4" hole out of your tank if you wanted a 4" fan to actually move any air.

    Just use some flat rigid ducting down to the eaves, or install a vent tile. You will not need a reroof just to replace one tile.
     
  4. bernardgreen

    bernardgreen

    Joined:
    3 Nov 2006
    Messages:
    26,021
    Thanks Received:
    2,594
    Location:
    Bedfordshire
    Country:
    United Kingdom
    If you MUST condense the steam then use a heat exchanger to condense the steam and provide a drain pipe to get the condensed moisture into a drain.

    The heat exchanger can be a small finned radiator ( like a car radiator ) plumbed to the cold water tank to pre-warm the water and save water heating costs by a very small amount.

    Corrosion of the radiator might be a problem with the polutants that come with the steam from a bath room.
     
  5. DIYnot Local

    DIYnot Local

    Joined:
    3 Sep 2019
    Country:
    United Kingdom

    If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

    Select the supplier or trade you require, enter your location to begin your search.


    Are you a trade or supplier? You can create your listing free at DIYnot Local

     
Loading...

Share This Page