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Gas Fitter 2 Practice Test
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Question Number 18
The recommended water temperature setting from a mixing valve to the domestic water system in combination heating systems that employ oil-fired water heaters for heating potable water and for space heating is:
A. 43°C (110°F)
B. 49°C to 54°C (120°F to 130°F)
C. 60°C to 66°C (140°F to 150°F)
D. 83°C (180°F)
✔ Correct Answer:
B. 49°C to 54°C (120°F to 130°F)
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