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Q. |
Direct solar water heating systems |
A. | offer great overheating protection |
B. | are called pumped systems |
C. | offer no overheating protection |
D. | offer great freeze protection |
Answer» C. offer no overheating protection | |
Explanation: direct solar water heating systems are also called compact systems. they offer little or no overheating protection unless they have a heat export pump. |
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