Loud bang when heating turns off

[Unregistered]

Hi,

I have recently moved into a new property where the heating had recently been installed, I have renovated the house so the boiler has been relocated and the radiators were all removed then refitted, the system is a gloworm boiler with two zones upstairs and downstairs with separate thermostats. There are no problems when the heating is running, but when the thermostat clicks off there is a single loud bang that sounds like it's the pipes between the floors??
Does anybody have any idea what it can be?
Thanks in advance
Matty

 

[SimonG]

Need to register for answers

 

[Dotty]

Please register with us and start a new thread to receive an answer to your question.