Quote:
Originally Posted by CJ
Hmm. Not too sure about that part of your post Barry.
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That is the way we were taught in physics 60 years ago (before political correctness) about the methods of transfer of energy.
The point I am making is that glass is an insulator for conduction, and convection (it is solid) but it does not stop the radiation of infra red rays. That means simply that the high energy heat gets in by radiation but is absorbed by whatever is in the greenhouse so only a small portion is reflected or emitted to radiate out.
It is also why solar hot water heaters work.
Barry