How to lower humidity and increase humidity

Discussion in 'Incubating & Hatching Eggs' started by gogo10131, Jun 17, 2010.

  1. gogo10131

    gogo10131 Out Of The Brooder

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    May 23, 2010
    San Diego, CA
    How do I control the humidity in my incubator? I don't think I'm lowering or increasing the humidity properly. Help would be nice
     
  2. acdoc

    acdoc Chillin' With My Peeps

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    Jul 14, 2009
    shenadoah valley
    decrease water surface area to decrease humidity,increase water surface area to increase humidity.
     
  3. gogo10131

    gogo10131 Out Of The Brooder

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    May 23, 2010
    San Diego, CA
    what should the humidity be before lockdown? and after lockdown?
     
  4. A.T. Hagan

    A.T. Hagan Don't Panic

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    Aug 13, 2007
    North/Central Florida
    The humidity before lock down is subject to considerable dispute. Some folks don't add any additional water at all while others do. Most extension service documents recommend 50-55%. I try to keep mine as close to 52% as I can manage which has been a bit difficult with this present batch due to our mini-heat wave. At day nineteen or lockdown bump the humidity up to between 60-70%. I prefer 65%.

    Raising or lowering the humidity is a function of both surface area of water within the incubator and the amount of ventilation. The more water exposed the more humidity. The less exposed the lower the humidity. More ventilation typically lower humidity while less typically raises it. Keep in mind though that an incubator MUST have ventilation for the eggs to survive so you can only shut it down just so much.
     
  5. joebryant

    joebryant Overrun With Chickens

    A.T. Hagan :

    The humidity before lock down is subject to considerable dispute. Some folks don't add any additional water at all while others do. Most extension service documents recommend 50-55%. I try to keep mine as close to 52% as I can manage which has been a bit difficult with this present batch due to our mini-heat wave. At day nineteen or lockdown bump the humidity up to between 60-70%. I prefer 65%.
    ...

    I totally agree.

    Also, to decrease the water surface, float thin, flat sheets of styrofoam on the water's surface. I cut mine from restaurant carryout box bottoms.​
     
  6. coop's chicks

    coop's chicks Out Of The Brooder

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    Oct 25, 2009
    Southeastern Ontario
    One tip that I found useful (at least this works in my styrofoam hovabator) is if I add water and the humidity goes too high, I cover part of the water with tin foil. That has been the best way I have found to lower humidity. If it gets too low, I fold the tinfoil back or take it out for a while.
     

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