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It would depend on several things.

If the feedwater gets heated in the process, preheat could reduce operating time. If it is less expensive to preheat, that is a plus.

If the process wants cold, preheat would be a negative.

Under some conditions it could make no difference at all.

2007-01-09 13:55:09 · answer #1 · answered by Ed 6 · 0 0

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