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greenhouse cooling question

This is a discussion on greenhouse cooling question within the Semi Hydro / Lights / Greenhouses / Accessories forums, part of the Orchid Culture category; Thank you Bob! Gosh, I've seen pics of your elaborate set up.....it's awesome. My husband ...

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  1. #11
    brit6v's Avatar
    brit6v is offline Senior Member
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    Vicki
    My Grow Area
    Greenhouse
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    Alabama
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    Default Hillbilly Bob

    Thank you Bob! Gosh, I've seen pics of your elaborate set up.....it's awesome. My husband was impressed by it, as well. It's obvious that you've really done your homework and much more.....your "tinkering" certainly seems to have paid off.
    Thanks again for your help!
    Vicki


    Quote Originally Posted by Hillbilly Bob View Post
    I have 3 fans on a farm fan controller ( Computer) the 1st fan comes on at 72 degrees 320 CFM then as temp rises another 5 degrees a 480 cfm fan comes on and another vent opens thus giving me 800 cfm this does good until about noon. Then when the temp gets 5 degrees higher at which time a 3200 cfm turbo fan kicks in and the other fans shut off to prevent short curcuiting of air. the mist system kicks in at this time .

    I was still heating to where I didnt want to be 93-95, I had intake vents that run 1000 cfm 1500cfm and 2000 cfm which I thought would be suffecent but as I experemented I found out that the 3200 cmf turbo could pull more than I was giving it so I went to a screen door and that finally gave the air movement I needed. I also bought a shade cloth at a nearby national store for 28 dollars and have used it even though my roof has uv coating built in. The hottest day here this summer was 98 the GH got to 91 I was happy with that but of course cant quit tinkering so trying for more.

  2. #12
    brit6v's Avatar
    brit6v is offline Senior Member
    Real Name
    Vicki
    My Grow Area
    Greenhouse
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    Aug 2008
    Location
    Alabama
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    395
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    Default Bikerdoc5968

    Hi Howard,
    I've been checking out photos of your SunGlo setup for months (I've been drooling over your orchids, too). My husband transferred my T5s from my orchid room to my new greenhouse this afternoon. The electrician already had everything wired up that he thought I would need, so I must have been reading your mind.....I have the additional outlets and light switch at the door, same as you. I have already experienced some unwanted company that I'm guessing you are speaking of. Actually, the company was only 2 of our cats, but still, I didn't want them parading all over the benches. I caught them crawling in and out through the intake louvers, as you mentioned. The carpenter had some bench wire leftover, so I'll get something as you suggested rigged up. I'm gonna try to remember to open and close the black vents..from day to night and vice-versa, but my "rememberer" just ain't what it used to be, so that might be a challenge. I also like your idea of additional shelving, so I'm gonna go shopping soon. I wasn't as lucky as you, as far as "extras" go. We bought my gh from a different company than you, and the extras weren't included in our deal. I didn't get benches, so I had to have those built, and neither did I get a heater. I think I already have one that will work, though. I'll have it on hand, but the need for it will most likely be some months away...since I live in Al. You mentioned a timer...if you are speaking of the exaust fan timer, that was included. Other than that, no more extras. Now, if I can just get my orchids to bloom pretty like yours, naah, that'll be a LONG way down the road, if at all. I only have 1 yr. experinece under my belt. I'm still at the stage of trying not to kill plants.
    Thanks for your help!
    Vicki



    Quote Originally Posted by Bikerdoc5968 View Post
    Vicki, I see from your photos you have a SunGlo product. I have the 7' x 15' of the same. Something you may want to do is install additional lighting in the roof, additional outlets at the door end with a switch to operate the lights and cover the intake opening with screen because you will have LOTS of unwanted visitors in short time!!!!! Unfortunately, there is no easy way to cover the top (black) vents to prevent these visitors. While you have a larger GH than I have, you may want to add wire racks at the ends of your GH for additional space. It is available at the big box stores. I also changed the electrical by adding additional breakers and additional outlets on the control board. All very easy to do by yourself. PM me for more stuff. As to the question you asked, I would agree with those who have mentioned misting systems...evaporative cooling is great for the chids! Another question??? I see they've changed some things on your GH... Didn't it come with redwood benches, and a timer, and a heater, and well, lots of other stuff?????

  3. #13
    jeffjohnson23's Avatar
    jeffjohnson23 is offline Senior Member
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    Jeff Johnson
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    On a Windowsill.
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    Default

    Have you thought about growing some trees around your greenhouse? May help keeping it cool during the summer months

  4. #14
    Bikerdoc5968 is offline Senior Member
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    Howard
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    Anything That Will Grow
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    W. Bloomfield, Michigan
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    Default

    Vicki, if you haven't done anything about the intake vent, what I did is cut aluminum framing and put together a screen that I screwed to the inside of the vent. Because of the armature at the bottom, you have to make a small cut in the screen before you attach it. I don't ever or almost never open the gable vents because I never screened them and lots of unwanted critters fly in when they are opened. As for the timer, my kit came with a separate 24 hr timer like you would use in your home when you are away. I have never used it but it is mounted on the control board.
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    Last edited by Bikerdoc5968; August 27th, 2009 at 08:02 AM.

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