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Mend Boiler Heating System Loud Noise

BANG!!?

When my central heating boiler shuts off i can hear a loud bang from somewhere but cant pin-point it. what is it??

Phil
February 2010
Heating, Home Heating SystemsBoiler Heating System Loud Noise
make sure the pump keeps running after the boiler stops firing, it should continue to overrun for approx 2 mins, if this is happening make sure the system has a bypass as banging can be heat unable to get away from the boiler, try boiler noise silencer in your f and e tank but if you can get it straight into the primary pipe work it would be more effec tive

john
February 2010

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Boiler Bang: What Causes the Loud Noise?