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Glass helps trap solar heat, but other than that any form of insulation keeps heat from entering and escaping. This is how your thermos knows wether to keep yo
by wodenokoto 5y ago
Glass helps trap solar heat, but other than that any form of insulation keeps heat from entering and escaping.
This is how your thermos knows wether to keep your drink hot or cold.
So except for the sun shining through windows, insulation keeps heat out of your house.
- z3t4 5y agonew product idea: black plate (same as Northern roofs) thermos with glass windows. Would only work if you wanted to keep the drink hot though.