NV C-37 Solar Practice Questions - Nevada C-37 Solar Contractor Examination Exam

The circulator on an open-loop potable C-37 water heater should have which wet-end materials?

Bronze or stainless steel, listed for potable water A cast-iron heating circulator An unlisted automotive water pump A plastic pool pump with no check valve and no listing for potable use

Correct Answer:

Bronze or stainless steel, listed for potable water

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