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Thread: Hot Highlanders

  1. #25
    31drew31's Avatar
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    Pineapple: Make sure the thermostat you buy handles the power your swamp cooler draws. Also cheap thermostats often means cheap quality. Do you really want a $40 thermostat controlling the fate of your pricey nepenthes collection?

    I would recommend a Johnson A419. They're on the cheaper end price wise, but handle a good amount of wattage (1000 I think) and are easy to set up. You can also set the temperature differential low meaning you will use less power to cool your greenhouse.

  2. #26
    Formerly known as Pineapple Nepenthesis's Avatar
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    Quote Originally Posted by Tony Paroubek View Post
    You do realize it takes several MONTHS for Nepenthes to adapt fully?
    Yeah, I've been told. In my mind, if it were an issue of still acclimating to the conditions, they would have wilted pitchers all the time, not just during the day. I'm not very experience with Nepenthes yet, only been into this for five months. This is my first time hardening off neps...

    Quote Originally Posted by 31drew31 View Post
    Pineapple: Make sure the thermostat you buy handles the power your swamp cooler draws. Also cheap thermostats often means cheap quality. Do you really want a $40 thermostat controlling the fate of your pricey nepenthes collection?

    I would recommend a Johnson A419. They're on the cheaper end price wise, but handle a good amount of wattage (1000 I think) and are easy to set up. You can also set the temperature differential low meaning you will use less power to cool your greenhouse.
    Thanks! I'll look into the A419. I'll try to find a place around here that carries them so I can check them out in person and get a feel for what I would need to do to hook it up. Doesn't look too pricey.

  3. #27
    Tony Paroubek's Avatar
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    During the night when it's cooler and more humid the plant is under less stress so they can recover from an internal moisture deficit (code name - wilting)... provided it isn't overly severe and the plant has healthy roots able to take up water from the root zone.
    Is that a Nepenthes in your pocket or you just happy to see me?

  4. #28
    31drew31's Avatar
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    Quote Originally Posted by Pineapple View Post
    .
    Thanks! I'll look into the A419. I'll try to find a place around here that carries them so I can check them out in person and get a feel for what I would need to do to hook it up. Doesn't look too pricey.
    They usually don't come wired, but usually if you ask nicely the seller will wire them for you, only takes them 5 minutes. Once it's wired they are quite easy to set (manual helps a lot the first time) then plug your swamp cooler in and your ready to go.

    One thing to also confirm is that your cooler will turn back on after the power has been cut from it as this is all the thermostat is doing. Most digitally controlled appliances don't do this, but dial type ones (assuming yours is) turn back on no problem.

  5. #29
    Formerly known as Pineapple Nepenthesis's Avatar
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    Quote Originally Posted by Tony Paroubek View Post
    During the night when it's cooler and more humid the plant is under less stress so they can recover from an internal moisture deficit (code name - wilting)... provided it isn't overly severe and the plant has healthy roots able to take up water from the root zone.
    What would cause internal moisture deficit? They are all being kept pretty wet because I have to heavily mist the live sphagnum on them in the morning and at night to keep it from drying out. They more certainly do have enough water. Is the water evaporating from their leaves faster than the roots can draw it up?

    ---------- Post added at 04:53 PM ---------- Previous post was at 04:52 PM ----------

    Quote Originally Posted by 31drew31 View Post
    One thing to also confirm is that your cooler will turn back on after the power has been cut from it as this is all the thermostat is doing. Most digitally controlled appliances don't do this, but dial type ones (assuming yours is) turn back on no problem.
    Mine is dial. I've turned the circuit off and on and it comes right back on, so that's not a problem. I can also wire it myself... Or rather, I know somebody who is actually an electric engineer and they will do it for me.

  6. #30
    Tony Paroubek's Avatar
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    Quote Originally Posted by Pineapple View Post
    Is the water evaporating from their leaves faster than the roots can draw t up
    Yes essentially. Why, because the leaves and pitchers that formed on the plant prior to being placed in the greenhouse were adapted for whatever environment they grew in. Also the root system forms in conjunction with the leaf growth to sustain it at whatever moisture uptake rate is needed. If the plant is in a less stressful, more humid, lower light, cooler temperature range not as much water uptake is necessary for a healthy plant. When you change the conditions so that more water uptake is necessary to prevent wilting the current root system is not large enough to handle the increased demand. You can keep it as wet as you want but there simply isn't enough root mass there to meet the demand. Which is why it takes MONTHS to adapt. New leaves will handle the harsher environment better which will reduce transpiration loss. New roots will grow to meet the increased demand for water uptake. etc etc etc...

    If the pitchers are dry inside you can add some water to help the plant with an extra source of moisture. If all you are seeing is a little pitcher wilting during the day then I wouldn't be too concerned. By the time the plant makes new pitchers they will be ready to handle the new environment. If you start to see leaf wilting then it's more serious.
    Is that a Nepenthes in your pocket or you just happy to see me?

  7. #31
    Formerly known as Pineapple Nepenthesis's Avatar
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    Quote Originally Posted by Tony Paroubek View Post
    Yes essentially. Why, because the leaves and pitchers that formed on the plant prior to being placed in the greenhouse were adapted for whatever environment they grew in. Also the root system forms in conjunction with the leaf growth to sustain it at whatever moisture uptake rate is needed. If the plant is in a less stressful, more humid, lower light, cooler temperature range not as much water uptake is necessary for a healthy plant. When you change the conditions so that more water uptake is necessary to prevent wilting the current root system is not large enough to handle the increased demand. You can keep it as wet as you want but there simply isn't enough root mass there to meet the demand. Which is why it takes MONTHS to adapt. New leaves will handle the harsher environment better which will reduce transpiration loss. New roots will grow to meet the increased demand for water uptake. etc etc etc...

    If the pitchers are dry inside you can add some water to help the plant with an extra source of moisture. If all you are seeing is a little pitcher wilting during the day then I wouldn't be too concerned. By the time the plant makes new pitchers they will be ready to handle the new environment. If you start to see leaf wilting then it's more serious.
    No leaves wilting, so its all good.

    I cut a hole in the panel and made a duct ghetto-style from foil tape. I'll post pictures soon. Seems to be working. Just finished ten minutes ago, not hot outside anymore. I'll test it out tomorrow.

  8. #32
    Formerly known as Pineapple Nepenthesis's Avatar
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    Yesterday it was 85F in the greenhouse with the door open and the swamp cooler on high. 60% humidity. Closed the door, and within 15 minutes it was down to 80F and 70% humidity, which will be much more manageable for everything I'm keeping I suppose. Today it's supposed to be over 90F, so I'll see how it goes. Hopefully it will keep it around 85F, that would be perfect.





    VIDEO OF THE SETUP: http://www.youtube.com/watch?v=V0Y-PpefdV4

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