Condensation

Discussion in 'Heating and Air-Conditioning' started by Carters, Oct 14, 2011.

  1. Carters

    Carters Read Only Funster

    Joined:
    Oct 14, 2011
    Messages:
    1
    Likes Received:
    0
    Location:
    Cumbria
    Does anyone have a successful solution to condensation? We are a family of four living in our 6 berth motorhome in the UK. Each morning we have condensation on the windows and damp under the cushions despite closing all blinds, covering cab windows with silver screens and fitting an extra curtain across the cab area. We are tempted to buy a dehumidifier but hesitate at the possible noise it will create.

    Has anyone found a good solution?
     
  2. pappajohn

    pappajohn Funster Life Member

    Joined:
    Aug 26, 2007
    Messages:
    29,443
    Likes Received:
    16,873
    Location:
    YO11 2BD
    ventilation.....its the only way to do it.

    leave the roof vent open a little and a window or two, away from where you sit/sleep to avoid drafts.

    dehumidifiers only really work in a sealed area, as soon as you remove moist air its simply replaced by more moist air.
     
    • Like Like x 2
  3. scotjimland

    scotjimland Funster Life Member

    Joined:
    Jul 25, 2007
    Messages:
    28,934
    Likes Received:
    25,574
    Location:
    .
    agree, ventilation is the answer..

    re dehumidifiers.. I agree with John but only when the outside air is hot with a high humidity..

    In winter when it is cold and dry outside it will lower the van humidity to the same level as outside.. but from a purely practical point they are big and quite noisy and require the exhaust tube vented outside, which means leaving a window partially open..
     
    • Like Like x 1
  4. vwalan

    vwalan Funster

    Joined:
    Sep 23, 2008
    Messages:
    7,594
    Likes Received:
    3,853
    Location:
    roche cornwall
    the other thing is more insulation double glazing etc.
    also having lathes nder mattresses makes a differance.
    best cure is go south but thats not always possible i know.
    the hippy comunity do it with wood burners but they have draw backs . some burn coal or smokeless fuels. makes a very dry heat.
     
  5. callumwa

    callumwa Read Only Funster

    Joined:
    Jan 16, 2011
    Messages:
    4,113
    Likes Received:
    4,517
    Location:
    Tyne & Wear, sometimes..
    Leave as many things open as possible to let air circulate. Roof lights, windows cracked, toilet roof light etc. Four people generate a relatively huge amount of "vapour" in a small space.

    When I was growing up in Scotland in the winter With no central heating. In fact no heating or double glazing we always left the window open at night. Close it and you got masses of condensation.
     
    • Like Like x 1
  6. wivvy's dad

    wivvy's dad Read Only Funster

    Joined:
    Jun 22, 2010
    Messages:
    3,218
    Likes Received:
    1,807
    Location:
    48.066895,12.862673
    Ventilation

    Ventilation

    Ventilation
     
    • Like Like x 2
  7. beachcaster

    beachcaster Read Only Funster

    Joined:
    Dec 18, 2010
    Messages:
    3,048
    Likes Received:
    3,171
    Location:
    east sussex
    How the hell do you get a lathe under your mattress ?
    Mind you..... useful for making a few wooden bowls .


    barry:Smile:

    ok no one likes a smart ass....I'll get m' coat
     
  8. vwalan

    vwalan Funster

    Joined:
    Sep 23, 2008
    Messages:
    7,594
    Likes Received:
    3,853
    Location:
    roche cornwall
    cant spell the word ,long strips of wood about 1.5 inches by an inch by ?
    come on latts . mind gone tell me the word .
    you know what i mean. they can also be used for child training hee hee.
    just looked it up in a dictionary laths.
     
    • Like Like x 1
  9. Gromett

    Gromett Funster

    Joined:
    Feb 27, 2011
    Messages:
    7,908
    Likes Received:
    13,935
    Location:
    UK
    The only place I get condensation is the windowscreen and side windows of the cab. External silver screen fixes this.

    Now I have a squeegy and big cloth as I don't use an external screen anymore.
     
  10. JockandRita

    JockandRita Funster Life Member

    Joined:
    Aug 2, 2007
    Messages:
    5,653
    Likes Received:
    6,772
    Location:
    Lincs/Cambs border
    With enough ice on the inside to create artwork. Aye, I remember those days well Callum. :Laughing:

    To the OP, it's all been said in the advice above, ie, ample ventilation :thumb:

    Cheers,

    Jock.
     
    • Like Like x 1
  11. BwB

    BwB Funster Life Member

    Joined:
    Apr 3, 2011
    Messages:
    604
    Likes Received:
    561
    Location:
    Brandon Suffolk UK
    Cardboard under the bed can sort that problem. Corrugated cardboard (like bpxes are made of) the thicker the better. If you can find a box from an upright freezer this will fit a double bed.

    The theory is that the cardboard absorbs the moisture coming through the bed and the corrugations allow air flow to take the moisture away.

    Sounds a crazy idea but it works.

    The wooden slats this is good too but might be harder to source.

    (if the cardboard gets soggy wet stop using it - you've got other problems)

    If you cook with gas - open the windows. Lots of moisture in gas and lots of moisture created by cooking (boiling water, etc.)

    Get a passive dehumidifier (or two). It's like a box of silica gel (like the packets you get in electronic goods only bigger). They're not magic but they do help a bit.

    But the best of all is .... ventilation. As per all the other advice.
     
  12. JeanLuc

    JeanLuc Funster

    Joined:
    Nov 17, 2008
    Messages:
    2,782
    Likes Received:
    1,857
    Location:
    Warwickshire
    If you get a copy of John Wickersham's book on motorhome maintenance, published by Haynes Manuals, he shows a few solutions for improving ventilation under beds.
     
  13. Heyupluv

    Heyupluv Read Only Funster

    Joined:
    Oct 7, 2008
    Messages:
    3,862
    Likes Received:
    1,585
    Location:
    France,
    AS everbody has already said ventilation...air movement......... but this will help
    For the moment until you can purchase the proper plastic unit place a few Tupperware containers...two or three one on the dash one in the kitchen, one in the bedroom with normal salt in that will absorb the moister...in France all the supermarkets sell them so I would think B&Q and others will also in the UK

    something like this unit cheap and cheerful, no electric, no noise,

    http://www.nationalmarineproducts.com/DRI_Z_AIR_Dehumidifier_Unit_p/16133.htm



    what they are is a plastic box 15cm x 10cm x 150cm with a lid that will allow the air in (the lid has holes in) the crystals are in a absorbent bag and sit on a plastic shelf half way up the plastic box they absorb the moisture which drains through into the box.....empty the box when near full....you buy bags of crystal to replace when the old one is finished /no good any more
    Mel
     
    Last edited: Oct 15, 2011
  14. Heyupluv

    Heyupluv Read Only Funster

    Joined:
    Oct 7, 2008
    Messages:
    3,862
    Likes Received:
    1,585
    Location:
    France,
    Theseare some in France... but they are in many shapes, forms and prices,

    http://cgi.ebay.fr/ABSORBEUR-DHUMID...tementdelAir&hash=item33620dc796#ht_500wt_789

    http://cgi.ebay.fr/Petit-Absorbeur-...ementdelAir&hash=item2eb875df16#ht_2469wt_901

    http://cgi.ebay.fr/Absorbeur-dhumid...OutilsaMain&hash=item5ae2e7e94e#ht_1374wt_772

    http://cgi.ebay.fr/absorbeur-dhumid...nElectrique&hash=item2560df493e#ht_500wt_1028

    http://cgi.ebay.fr/RECHARGES-ABSORB...tementdelAir&hash=item334bd47d0f#ht_500wt_789

    http://cgi.ebay.fr/Absorbeur-d-humi...mentdelAir&hash=item45fd2e5e4a#ht_1469wt_1011

    Mel ....look in B&Q...Wicks...Do IT all...:thumb:
     
  15. Terry

    Terry Funster

    Joined:
    Dec 27, 2007
    Messages:
    10,722
    Likes Received:
    6,224
    Location:
    South yorks
    Each person breathes out aprox 1 1/2 pints of water per night :Eeek: Stop breathing :BigGrin:-- already been said ventilation :thumb: Swap solid ply bed bases for slated lath types-easy to make- :thumb:
    terry
     

Share This Page