What types of materials (frame / covering) did you use when building your greenhouse?
Is your greenhouse solar?
How much did you ultimately spend to build yours?
And what does a solar greenhouse necessarily suggest? Aren't all greenhouses solar? Is there a difference between a 'greenhouse' and a 'solar greenhouse'?
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Building a Better World in your Backyard by Paul Wheaton and Shawn Klassen-Koophttps://permies.com/w/better-world