How would the addition of $2$ south$-$facing windows that accept sunlight affect the heating requirements on a sunny day. Consider a simple example where both windows are $1-$meter on a side, are made of thermally insulating glass which has an air$-$gap so that it does not readily conduct heat, and the Sun delivers $1$ kW of energy per square meter directly through the window.

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The addition of two southfacing windows that accept sunlight would likely reduce ... View the full answer