The part taken out from the working boiler.
We test it if it is working fine. We clean it as much we can and sell it.
Because of health and safety reason we can not open it up and reconditioned from in side.
If any of then does not work. We through it in the scrap
If you have any query about that part. You can contact us on our number 0208 803 9000 where our member of staff will help you for further assistance.