Answers in this category:
What does a homemeade solar thermal collector look like?
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Questions needing answers:

 What are the major types of flat panel solar collector?
 How can I use low-grade heat to move air?
 How can I make my own solar chimney?
 What's the advantage of an evacuated collector?
 Why are selective surfaces (emissivity << absorptivity) important?
 What are the best selective coatings for a solar thermal collector?
 What's the advantage of a concentrating collector?
 What does a parabolic trough look like?
 What does a tracking dish concentrator look like?


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