Reduce eaves width to 42 - 43 percent of H to extend the heating season past the equinox.

把屋檐的宽度降低到高度的42% - 43%,来延长春分和秋分之外的取暖季节.

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The payback period is usually 1 ~2 heating seasons, even less than 1 heating season.

而余热回收系统的投资回收期一般在1～2个采暖季, 有时甚至小于1个采暖季.

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Reduce eaves width to 42 - 43 percent of H to extend the heating season past the equinox.

把屋檐的宽度降低到高度的42%43%来延长春分和秋分之外的取暖季节.

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