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The image illustrates air leaks in a cross-section of a house with blue arrows depicting air entering and orange arrows depicting air exiting, including plumbing stack vent at roof, recessed lights at attic, attic hatch, bathroom fan vent, electrical outlet, dryer vent, crawl space, and outdoor faucet on one side, while other side shows recessed lights, kitchen fan vent, and chase.
Given the complexity of the image, the above description may not be entirely accurate.
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The picture presents different ways of how heat lose in a house.
A two-floor building has several vents and windows to leak into and out. The most amount of heat leaks out in attic story, for instance, through vents and lights that are set on ceiling in all rooms.
The next floor, both leaks out and into. As in the middle story has a few doors and windows, air flows. However, in basement air leaking is increased. Despite involving a couple of small windows and vents in basement, air does not flow as much as the other stories.
In general, the most leaking out is on attic floor. In contrast, the most air leaking into happens in geround story. Similarly, the least air flow happens in basement.
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