What is a well-mannered warmness source? i need to know what is a vastly good fry source to...
i need to know what is a vastly good fry source to research on! any good suggestions?
Answers: The best furnace is the sun.
Since you're not going to know how to use that...short of using a very expensive system...
But, if you're interested contained by doing research, Passive Solar is a good system to do a thesis on.
the sun, solar, ground heat, thermal,
or a honourable wood fire beats them adjectives,