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Thread: Cooling a terrarium with fridge parts?

  1. #1

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    Lightbulb

    Hi, has anyone here ever bought an old fridge, strip it naked and place the cold tubing inside a terrarium? (For highland Neps)
    Iíve heard about this and would like to know more about it from people who have experience with it.

    Things like, how to do it [img]http://www.**********.com/iB_html/non-cgi/emoticons/new/smile.gif[/img], is it difficult or dangerous? What rookie mistakes should I try to avoid? And how much degree can it actually cool a large terrarium for example...

    Thanks.
    [img]http://home.**********.com/users/phyrex/phyrex.gif[/img]

  2. #2
    Tropical Fish Enthusiast jimscott's Avatar
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    I like the concept. I especially like the out of the box thinking. I would avoid electricity and wet. Bad combo. Also, I would avoid plugging bare wires into the same outlet. I speak from experience on that one! It kinda looks like Doc Brown trying to get the electricty from the bell tower / electrical storm to attain 121 gigawatts of electricty, in Back To The Future! That's one of those, "Don't try this one at home" type thingys. [img]http://www.**********.com/iB_html/non-cgi/emoticons/new/smile_m_32.gif[/img]

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    Hi Phyrex,
    Sorry... tried it, does not work.
    you will have better luck with an AC. Same price too [img]http://www.**********.com/iB_html/non-cgi/emoticons/new/smile_m_32.gif[/img]
    Robin

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    Well I have an old fridge lying somewhere so price is not a factor or something.

    But could you explain a little why it didn't work?
    Did you not manage to get a system working or when it did work it just didn't cool a lot?

    I would like to know any details about your experiment before I do it (which is next week).

    Thanks. [img]http://www.**********.com/iB_html/non-cgi/emoticons/new/smile.gif[/img]
    [img]http://home.**********.com/users/phyrex/phyrex.gif[/img]

  5. #5

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    I took apart a brand new small refrigerator roughly 2' x 2' x 2'
    I then enclosed the freezer portion of the unit in a rubbermaid tub , with a intake and exhaust hole, with a fan attached on the exhaust side. I then attached a thermometer to the the exhaust end.
    There was no difference in temperature after 4 hrs. I think the little freezer unit just did not have the oomph to cool anything not extremely well insulated.
    If you have a full size fridge on the other hand you may be able to use it as is.. Just cut a hole in the door and put in a window or plexi-glass. that would probably be your best bet. I'm putting together large freezer set up now. Simply a freezer with a storm window in the lid.
    Hope that helps,
    Robin
    [img]http://www.**********.com/iB_html/non-cgi/emoticons/new/smile.gif[/img]

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    Thanks for the explanation Rlhirst.

    I have a bit larger fridge although not your typical 'large' one. I will still try it since it's old junk anyway. [img]http://www.**********.com/iB_html/non-cgi/emoticons/biggrin.gif[/img]

    Anyway, you said I would be better off with an airconditioner. I was initially planning on doing that (and still am if this doesnt work) and have a ultrasonic fogger in front of the airco to re-humidify the air again.

    Do you have an airco setup? If so, how much degree does it actually cool? And do you have any problems with the setup?
    [img]http://home.**********.com/users/phyrex/phyrex.gif[/img]

  7. #7

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    Phyrex,
    The AC cooled a good 20 degrees. I only use it when the outside temps stay over 60 @ night.The problem I have with it, is that the humidifier I use, heats up to 62 degrees. Since the humidifier is on the whole time the ac is on, the temp wont go below that 62 degree mark.
    Fortunately, I only need to use the AC for a month or so in the summer.

    Good luck with your project! Let us know how it goes,
    Robin
    [img]http://www.**********.com/iB_html/non-cgi/emoticons/new/smile.gif[/img]

  8. #8

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    Well 62 degree seems very good to me. [img]http://www.**********.com/iB_html/non-cgi/emoticons/new/smile.gif[/img]

    Currently my room temperature is a constant 72 and with 232 wattage of light on it goes up to 84. As long as it doesnít go above the 86 it isnít a big problem right?

    60 degree at nighttime is good enough for plants like Rajah, Lowii and Hamata right? (Also have the following on my wishlist: Sibuyanensis, Eymae, Ephippiata, Veitchii and Macrophylla, and then my 100 gallon terra will be no doubt full [img]http://www.**********.com/iB_html/non-cgi/emoticons/biggrin.gif[/img])


    Oh and about your setup, why use a steam humidifier when heat is your problem? Why not buy a cheap ultrasonic mister which produces cool mist?
    Iíve bought one for 50 euro (New its 125) and itís great. Insanely quick humidity increase close to 90-100 within 5 minutes.

    Ps: How big is your terra Rlhirst?
    [img]http://home.**********.com/users/phyrex/phyrex.gif[/img]

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