What is the purpose of a tempering valve in a solar water heating system?

What is the purpose of a tempering valve in

Multiple choice — select the best answer

ATo blend hot water with cold water to maintain a safe delivery temperature
BTo control the temperature of the heat transfer fluid
CTo prevent backflow of heated water into the cold water supply
DTo release pressure when the system overheats

✓ Correct answer: A. To blend hot water with cold water to maintain a safe delivery temperature Tempering valves (also called mixing valves) blend hot water from the solar storage tank with cold water to deliver water at a safe temperature to fixtures, preventing scalding.

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What is the purpose of a tempering valve in a solar water heating system?

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