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This is what happens when domestic water is used.

Back to Option II | Setup 1 | Setup 2 | Setup 3 | Setup 4

Hot water comes out of the solar storage tank through the backup tank and then goes to the hot water fixtures. If the solar storage tank is not warm enough, the backup tank will come on and make up the difference.

Closed Direct System Legend


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Our solar technicians are always ready to answer questions.

Call 1-800-451-7593