| 摘要 |
A solar water heating system comprising a solar energy collector which comprises a solar energy absorber communicating with a fluid distribution manifold, a drainback tank communicating with the distribution manifold for collecting drainage fluid from the distribution manifold, a pump activated by a differential controller, and a heat exchanger within a water storage tank. The distribution manifold comprises a floating valve header which seals the manifold during fluid feed and allows air to pass during non-active periods.
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