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Gravity fed system not sure how this valve works

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R

Rikki2

Dec 28, 2023
1
0
1
South Wales
Member Type
DIY or Homeowner
1000001884.jpg


This valve is fitted to the lower heating coil of the hot water cylinder Can anyone say what is the point of it I have been told its a thermostatic valve to control hot water temp so would have thought it may be in the wrong position ?Any explanations welcome
 

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