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Empty cans...

Discussion in 'Trash To Treasure - Joys Of Recycling' started by Blaundee, Jan 12, 2013.

  1. Jun 19, 2013
    Britesea

    Britesea Sustainability Master

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    I was thinking that I might be able to use some to warm up my garden beds a little faster in the spring, by spray-painting them black and partially burying them in the soil and filling with water (maybe with a bit of clear plastic on top to stop the water from evaporating away.) The heat from the water would radiate out into the soil, I hope. They would also work a hedge against late and early frosts.
     
  2. Jun 23, 2013
    Cindlady2

    Cindlady2 Lovin' The Homestead

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    The problem with using steel cans in the garden or with water... steel + water = rust!
     
  3. Jun 23, 2013
    Britesea

    Britesea Sustainability Master

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    well, that was partly why I thought of painting them... and the iron oxide wouldn't be such a terrible amendment to the soil either, would it?
     
  4. Jun 24, 2013
    Marianne

    Marianne Super Self-Sufficient

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    Our local recycle center takes both types of cans. If you're going to take the time and trouble to make a passive solar heater, you might as well make one that performs well. http://builditsolar.com

    Adding some iron to our soil here is a good thing!
     
  5. Jun 24, 2013
    Denim Deb

    Denim Deb More Precious than Rubies

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    Marianne, that looks like a neat site! When I have the time, I'm going to have to check it out.
     
  6. Aug 8, 2013
    Daffodils At The Sea

    Daffodils At The Sea Power Conserver

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    Food cans corrode and aluminum doesn't, food cans expand and contract too much in cold and heat creating cracks and openings, aluminum cans are lighter and when you use several hundred you don't have to build a complicated support, the openings in soda cans are small so sealing them up to hold the hot air is easier. aluminum soda cans are seamless, food cans have seams that will eventually have small openings and let out heat. Soda cans are all one height and depth, so the finished heater size is easily contained.
     
  7. Feb 7, 2017
    mobius

    mobius Sustainable Newbie

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    I take both ends off and use them around seedlings...easy to water that way and protects the seedlings in my garden...
     
    sumi likes this.
  8. Feb 8, 2017
    sumi

    sumi Sustainability Master Administrator

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  9. Aug 5, 2017
    milkmansdaughter

    milkmansdaughter Super Self-Sufficient

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    I save the cans and sell them to recycle the metal. It doesn't bring in as much as aluminum but it adds up. It's a great way to teach kids to save and earn money.
     
  10. Aug 5, 2017
    sumi

    sumi Sustainability Master Administrator

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    When I was in high school we used to collect empty cool drink cans and sell them for scrap metal. My dad made us a "crusher" so we could flatten the cans, which made storing them until we had enough for the trip much easier!
     

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