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I have a Vokera Excell boiler that is giving intermittent hot water. British gas have been to check it out and recommend a new heat exchanger. Does this sound like the correct response to the problem? Will removing it and flushing it through help?
Also if I replace the secondary exchanger will it then be necessary to flush the entire system to prevent debris being passed into the new exchanger?
Any thoughts welcome
Also if I replace the secondary exchanger will it then be necessary to flush the entire system to prevent debris being passed into the new exchanger?
Any thoughts welcome