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solar greenhouse

 
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Does anyone know if you can use Lexan in a solar greenhouse? I can't find definitive information on whether the uv spectrum the Lexan blocks is necessary for heating. It appears to be fine for plants, but I want the uv rays to passively warm a heat sink, like water or rock.
 
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Yes. Expensive.
 
John Brenne
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Is there a cheaper alternative that is similar to lexan?
 
Walter Jeffries
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Firecraft wrote:
Is there a cheaper alternative that is similar to lexan?



Cheaper. Look at fiberglass like Kalwall. The lexan is great stuff, just expensive. My father has it on his greenhouse and loves it. I would love to have it but it is outside my budget right now.
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