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Old 02-19-10, 01:40 PM   #3
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Another option is, if you can add another heat exchanger to the top of the tank as well so the hottest fluid from the collectors heats the top first then goes to the bottom and gets the last bit of heat pulled out before going back to the panels.
A timer is a must as on a normal electric hot water tank it will cut the electrical usage by half.
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