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Thread: Highland tank

  1. #9
    Tony Paroubek's Avatar
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    Keep in mind that an A/C unit is designed to suck the moisture out of the air it cools. So you will be pumping very dry air into your terrarium. The best solution I could come up with for this is to have the output from an ultrasonic humifier hooked into the pipe coming from the A/C unit before it enters the tank. Ideally you could also install a humidistat near the tank inlet to control the ultrasonic humidifier to run only when the A/C unit is running and the moisture level is low. OR to have the A/C air blown through a humidifying wetpad before it hits the terrarium.

    Swords has rigged up something like the humidistat/ultrasonic humidifier deal so would have some good ideas on how to do it.

    Tony
    Is that a Nepenthes in your pocket or you just happy to see me?

  2. #10

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    Tony, the one thing i would say is that i am toying around with that idea and i have to have the ultrasonic turn of and off during the day because the humidity drops to low in the highland tank. so having it hooked up to the window unit isn't really a good idea. have it on it's own curcuit since the a/c doesn't need to run during the day all the time like it does at night.
    George McKay

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  3. #11
    Tony Paroubek's Avatar
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    I think people have an extreamly distorted view on how humid these things should be. I have a hard time believing that an enclosed system would ever need a humidifier running. Now if your system has outside air entering for venting is not almost totally closed for some other reason then this is a different situation.

    Perhaps what you are experiencing is humidity drop as temperatures warm up during the day.. this is natural and completely fine as far as the plants are concerned. Regardless if you feel you still need a humidifier in the main terrarium to maintain humidity within that area. You will still need to rehumidify the A/C cooled air before it hits the terrarium. You think you have a humidity drop now during the day as the temperature warms up.. wait till you start pumping in a couple hundred cubic feet of cool air at 20% relative humidity.. The in tank humidifier will not be able to mix and adjust this incoming air fast enough IMO.

    I suggest you talk to Swords who had a set up like this with an multiple in tank humidifiers and tried running the A/C air directly in without rehumidifying.

    Tony
    Is that a Nepenthes in your pocket or you just happy to see me?

  4. #12

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    actually i have to keep it humid and not let it drop below 80% during the day because of some of the cloud forest orchids that i'm growing in the tank. the only problem i'm having right now is the temp only gets down to 56F 14C at night it has hit 50F but, only once. from what i can tell the plants have ajusted to the condtions cause they are still pitchering and growing.

    if Josh wants to commet on this i'm all ears
    George McKay

    In The End We are All Dead
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  5. #13

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    Arrow

    What if I take a cloth and wet it with distilled water and have the fan put on high and blow into the wet cloth? [img]http://www.**********.com/iB_html/non-cgi/emoticons/confused.gif[/img]
    What is the Propability of the Propability?
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  6. #14

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    If you use a small 10 dollar water pump to keep the cloth wet that might work. I find it easier to use an ultrasonic on an autotimer, just less hassle. Also people depending on your AC unit and setup, the water removed from the air will need to drain out of the AC unit, perhaps into a bucket.

    Tony, what do you consider safe humidity levels? I find that I'm really overdoing the humidity but I'm not sure how low to let it go. My lowland room is enclosed but it has several true lowlanders such as N Amp that I'm afraid of harming should I try experimenting with shutting off the humidifier.

    Thanks,
    Joe
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  7. #15

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    Arrow

    I am only going to be using the A/C during the day and it will blow agains the tank. I foundit better to use cups of Tap water ice. Today I had 3 cups of ice in the 35gallon tank and it cooled down to 57*F that great. And when the ice melted it was still cooled and it didn't evaporate, because ther wasn't any water in the leafs of the neps. But the humdidty still stayed and it was 81%. [img]http://www.**********.com/iB_html/non-cgi/emoticons/biggrin.gif[/img]
    What is the Propability of the Propability?
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  8. #16

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    35 gallon tank...you must be using some large cups.

    joe
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