Note that this is only an advantage in cooler months, and does work against cooling your home in hotter weather. In principle it seems like we could could build

Note that this is only an advantage in cooler months, and does work against cooling your home in hotter weather. In principle it seems like we could could build our refrigerators into an outside wall (like iceboxes once were) and then expose the coils in summer, and enclose them in winter.