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Thread: Does anyone have one of these...

  1. #1

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    Harbor Freight mini greenhouse

    This is by far the cheapest I found on the market. Sort of makes me nervous. Does anyone have one of these and if so, what do you think of it?

    Any other suggestions for a small greenhouse? I was also wondering if there are plans out there that utilize old patio glass sliding doors? We have a neighbor who owns a few hundred apartments (yes, a few hundred) and he told me to find a way to make a greenhouse out of old patio doors and he'd have 30 delivered and on my doorstep tomorrow. I don't want that large of a greenhouse but I would like a little greenhouse some day.

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    Polycarbonate? Wouldn't that go bad over time?
    [img]http://home.**********.com/users/phyrex/phyrex.gif[/img]

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    Hmmm. I bought one of those, for my lowland neps.
    Depending on your climate ,and what you are growing, it can get very expensive (power gas ect.)
    Small, and greenhouse really don't go together. It gets VERY hot, and VERY cold quickly, as well as rapid humidity drops....
    I bought one and I was really excited about it. Ended up spending another two or three grand for misters, heaters, fans, vents, thermostats, ect.ect.
    my electricity bill went thru the roof, and my plants suffered.

    This was my first experience with a greenhouse, but I think that the bigger greenhouse you get, and the better insulated, the better off you will be. Also don't forget to include all the components in the cost. there's no way to get around em'

    Hope that helps you with your decision,
    Robin

  4. #4
    Tony Paroubek's Avatar
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    Climate control is a main issue when your dealing with a greenhouse. As Robin mentioned it can get very expensive in setup and equipment and ongoing energy costs.

    One of them indoors with some high output lights would make a really nice 'grow room' without all the major hassles of heating/cooling/humidifying that come with sticking a structure out in the sun and weather.

    Phyrex yes the polycarbonate will get yellow over time when exposed to UV. The stuff does have a UV protectant though and should last a minimum of 10yrs. Typically it will last much longer.

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

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    Nepenthes Specialist nepenthes gracilis's Avatar
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    I would prefer to go with Poly film, preferable 6 mil double inflated. But, polycarbonate is nice as it doesn't stretch or get tears in it. Typically as mentioned earlier, the bigger, the better. Generally cheaper to heat as it takes longer for it to cool off due to the larger air volume. If I were heating a 10 by 10 structure instead of my current 30 x 20 greenhouse I'd probably pay double for fuel and electricity, fuel would go up because it cools off quicker in winter and electricity would go kaboom in the summer as the high temperatures and small air volume would cause the exhaust fan to run nearly constantly, not to mention your swamp cooler or misting unit.

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    Boy, you guys really know how to burst a gal's bubble! Here I thought I had the find of the century! Guess not.

    Back to plan B... any way to make a greenhouse out of used sliding glass patio doors? They're all thermal and I can see two panes of glass which means they are insulated.

    I would be interested in a footprint of about 12 x 20 but truly no bigger than that for a greenhouse as I had been thinking 8 x 14 would have been more than adequate to meet my needs. A 20 x 30 would look out of place.

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    have you thought about building your own?

    labor and cost effective.

    just a thought.
    there are greenhouse plans for sale on the net.
    you buy the plans for like 15 bucks or so and then off you go to get supplies.

    but it helps to get input from someone who knows how to build them.,.. and lots of friends to help. [img]http://www.**********.com/iB_html/non-cgi/emoticons/new/smilie4.gif[/img]

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    Tony Paroubek's Avatar
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    You could use the patio door things but you would be winging it.. they would have to be secured to a frame and sealed between each unit. It would have to be something pretty heafty too.. those doors would way ALOT. Probably would need a full blown permanent foundation to support all that metal and glass. Not worth the effort and expense even if you got the doors for free. A hoop house with 2layer plastic is cheap and easy (although not quite as pretty to look at). Or just go with a prefab metal/polycarbonate unit like you found.

    btw not trying to burst anyone's bubble but there are alot of associated expenses with greenhouse construction and operation that are not immediately apparent. Best to be aware of them during the planning stage.
    Tony
    Is that a Nepenthes in your pocket or you just happy to see me?

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