Two-stage heating and cooling is considered to be more efficient, because it operates at low speed most of the
time. However, on days when more heating or air conditioning is required, it switches to the next stage for
maximum comfort.
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Two-stage heating and cooling is considered to be more efficient, because it operates at low speed most of the
time. However, on days when more heating or air conditioning is required, it switches to the next stage for
maximum comfort.
