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Heating Levers

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Jim77

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Hi all - can someone explain what the two black levers are in this picture? Are they for putting more pressure in the heating system? I have a Megaflow Eco Systemfit Unvented Cylinder.
 

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Jim77 said:
The second one is on the right hand side (not the best picture). So when replacing a radiator I would need to use this to top up the pressure? What pressure should it be?
Click to expand...

Yes open one fully then open the second slowly until you hear the water / pressure moving

On the pressure guage 1.2 ish is fine for a cold system eg rads cold
 

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