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Thread: Heating a mini greenhouse

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    Katherine
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    Heating a mini greenhouse

    I have a 4 tier mini-greenhouse, and I want to devote the top shelf to lowland nepenthes, and the bottom shelf to highland nepenthes. At the moment the whole setup is perfectly suited for highlands, temperature wise, so I need to heat it.

    So how am I going to heat the top shelf without using too much space, and without ruining the perfect habitat I have down below for the highlands?
    Suggestions?
    Drosera Arcturi-The Alpine Sundew...

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    mark.ca's Avatar
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    I don't know how small is yours but i have one that i use for germination of seeds and it's about 20" x 40" x 5 feet tall. if you have something similar then i would say that is not possible what you try to accomplish.....unless you want to put a separator........anyway you do it you will have to sacrifice space for the heater. Can't you just buy another?
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    Capensis's Avatar
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    Maybe you can make one end into a small room and heat that up?
    http://www.terraforums.com/forums/image.php?type=sigpic&userid=6789&dateline=1352508752

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    Katherine
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    No. I am thirteen. I am lucky to have this one, and I will have to find a way to heat it, thankyou.

    It is a 4 tier gardman, 27" x 19" x 63". It is inside, so running off electricity is what I had in mind. I'm going to use it as a grow rack, and I'm fitting it up with lights, so why not heat it?

    It looks like this: http://www.bestnest.com/bestnest/RTP...p?SKU=GAR-R687
    Drosera Arcturi-The Alpine Sundew...

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  5. #5
    Katherine
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    I've heard of people heating their terrariums with aquarium heaters. Maybe if I got a small 25W aquarium heater, and put it in 5 or so litres of water, would that work?

    Or I've heard of things called 'propogating heat pads', maybe a small one of those could work?
    Drosera Arcturi-The Alpine Sundew...

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    Nepenthes's Avatar
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    You will either have to heat up the whole thing, or nothing. I would highly suggest choosing one or the other. A slight possibility is to place a small aquarium on one of the racks and use the heater/water method there. That would take up a lot of space, but at least you could keep the terrarium warmer without heating up the rest of the growrack/greenhouse.

    If I were you though, I would just grow what is easiest in there. There are plenty of spectacular highlanders, and if you do it just right, you can even grow some less picky lowlanders as highlanders.
    - Daniel

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    Katherine
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    It is definitely possible, because I have already done it!
    Using a 100W incandescent bulb, for over three hours, I was able to heat the top shelf to a temperature of 23 degrees, which is nearly 10 degrees higher than the temperature in the rest of the greenhouse, without raising the bottom temperature any more. However, it will not heat it up any more, which is why I want to try a different, more cost effective way.

    So, now that I have proved it is possible, will someone please tell me if the aquarium heater would do a better job than the incandescent?
    Drosera Arcturi-The Alpine Sundew...

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    Tony Paroubek's Avatar
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    What you need is a seedling/propagation heat mat under the the tray with the lowland Nepenthes. You failed to mention what the temperature is up at the top during the day and night though. Perhaps you don't need anything at all? What do you have up there now and what are you wanting to grow?
    Is that a Nepenthes in your pocket or you just happy to see me?

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