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Old 12-02-2010, 08:10 AM
123Testing 123Testing is offline
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Default Greenhouse made from Plastic 2 Liter Bottles



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I have no idea if this really works, or not....

http://www.treehugger.com/files/2009...greenhouse.php



Here is one way of making one...

http://www.reapscotland.org.uk/repor...house%20v1.pdf


According to this guy.... it really works! Check out his photo slides...

http://www.squidoo.com/plasticbottlegreenhouse
Old 12-02-2010, 08:53 AM
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Quote:
Originally Posted by 123Testing View Post
I have no idea if this really works, or not....

http://www.treehugger.com/files/2009...greenhouse.php



Here is one way of making one...

http://www.reapscotland.org.uk/repor...house%20v1.pdf


According to this guy.... it really works! Check out his photo slides...

http://www.squidoo.com/plasticbottlegreenhouse
This the kind of stuff I hang around here for, thanks
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Old 12-02-2010, 09:08 AM
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This would totally work. I would add a trombe wall in it as well. Construct the north wall with intact bottles filled with water stacked horizontally and painted black. The sun will heat up that wall and the water will retain the heat through the night. The detailing wouldn't be too hard for a tight structure. I've put trombe walls in buildings with great success.

Great post!
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Old 12-02-2010, 09:12 AM
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This would totally work. I would add a trombe wall in it as well. Construct the north wall with intact bottles filled with water stacked horizontally and painted black. The sun will heat up that wall and the water will retain the heat through the night. The detailing wouldn't be too hard for a tight structure. I've put trombe walls in buildings with great success.

Great post!
This is a great idea but wouldn't it be pretty heavy?
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Old 12-02-2010, 09:22 AM
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This is a great idea but wouldn't it be pretty heavy?
Yes, its heavy- that's the point, but its on the ground or slab, its the mass thats retaining the suns energy. Construct a wood "rack" to hold the filled bottles. You also don't have to fill every bottle (it may get too warm in some climates).
Another idea would be to have a few selected empties that you can pop out of the wall to increase, decrease ventilation as needed.
I've built walls with 55 gal. filled drums in them on slabs, no problem. You adjust the structure accordingly.
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Old 12-02-2010, 09:23 AM
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Originally Posted by britzen View Post
Yes, its heavy- that's the point, but its on the ground or slab, its the mass thats retaining the suns energy. Construct a wood "rack" to hold the filled bottles. You also don't have to fill every bottle (it may get too warm in some climates).
Another idea would be to have a few selected empties that you can pop out of the wall to increase, decrease ventilation as needed.
I've built walls with 55 gal. filled drums in them on slabs, no problem. You adjust the structure accordingly.
Sweet, I was thinking it was on a floor not a slab.
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Old 12-02-2010, 09:39 AM
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Well, you could have it on a floor or wide stand (not legs, that would increase the point load) if you limited it to around 200lbs-250lbs. Say-50 bottles running approx 4lbs ea. stacked 3 wide would use a similar load as a human/per s.f. That would be acceptable for most decent framing. (Im thinking of the piano leg collapsing through the White House floor when Harry Truman played it right now
Old 12-02-2010, 12:09 PM
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This looks like it would take a tremendous amount of time to build. Plastic sheeting is pretty cheap, and doesn't leak air like this contraption will.
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Old 12-02-2010, 12:14 PM
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I think you are supposed to wrap plastic over it, once it's built. The bottles act as a layer of insulation during cold nights. Plus this adds stability to the structure. Just my guess.
Old 12-02-2010, 01:11 PM
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Default My plans...

Are to have some 55 gallon blue water barrels painted black with PVC pipe run to containers for veggies. And run solar heated water through the PVC which is buried in the soil near the plants to warm them. Also, some kind of top cover at night to keep some heat in.


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Old 01-08-2011, 11:09 AM
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I think you are supposed to wrap plastic over it, once it's built. The bottles act as a layer of insulation during cold nights. Plus this adds stability to the structure. Just my guess.
Yes, plastic sheeting might be easier. I believe the point of using the bottles is to use recycled/re-purposed materials.

I don't see why you would need to cover this with plastic afterward, maybe in really cold climates. But for most applications I think this would be insulated enough as is. Now I just need to figure out how many bottles I need for the 12x20 greenhouse the wife and I want to construct...3000 or so?
Old 01-08-2011, 11:06 PM
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I can make a greenhouse out of bacon but just because I can doesn't mean that I should.
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Old 01-08-2011, 11:29 PM
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Quote:
Originally Posted by britzen View Post
This would totally work. I would add a trombe wall in it as well. Construct the north wall with intact bottles filled with water stacked horizontally and painted black. The sun will heat up that wall and the water will retain the heat through the night. The detailing wouldn't be too hard for a tight structure. I've put trombe walls in buildings with great success.

Great post!

wouldnt the bottom bottles get crushed if all of the bottle are filled with water?

it might take more bottles but could you not lay them on their sides with the bottom faceing out and the mouth faceing in? that way you dont need to paint anything and the mass of the northern wall would be much bigger?
Old 01-09-2011, 02:34 PM
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I considered a trombe wall with bottles full of Glauber's salt solution cast into concrete and painted black. May still try that this spring, because the salt will actually hold heat better than the sheer concrete mass....
Old 01-09-2011, 03:35 PM
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Originally Posted by camsoup View Post
Yes, plastic sheeting might be easier. I believe the point of using the bottles is to use recycled/re-purposed materials.

I don't see why you would need to cover this with plastic afterward, maybe in really cold climates. But for most applications I think this would be insulated enough as is. Now I just need to figure out how many bottles I need for the 12x20 greenhouse the wife and I want to construct...3000 or so?
4,200 +/-. That is at 6 per square foot, derived from the square footage of the original greenhouse design divided into 1500 bottles used, then multiplied times the square footage of your design. To prevent sag, at least for the 7.5 foot roof span (peak to eave) I would recommend the cane construction.
Old 01-13-2011, 05:32 PM
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i did this last spring and it works but the bottles get brittle and start breaking from i guess UV radiation...lasted the spring/summer but i had to take all the bottles down and throw them away about july. i didnt ask my 'bottle donor' to save her bottles and i couldnt get the greenhouse fixed for winter........it is a lot of work also. i think i will stick to plastic sheeting next spring.
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Old 01-16-2011, 03:00 PM
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This is a pretty awesome idea! I was pretty much sold on giving it a try until I read 709hannah's post...
Old 01-16-2011, 04:16 PM
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Prime enemy of that kind of plastic is a combination of UV light and temperature change. If you can keep 'em out of the sunshine, it helps a lot for their longevity. Put up full of salt solution to hold heat inside a black box, they will last for a long time. If you are willing to rebuild each season, it is a valid way to do business.
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