Been working with external radiators for a while now. Radiators can take all kinds of shapes and form from air-con rads to car rads. For this project, I've got my hands onto some custom make copper rad with aluminium fins, supposedly able to cool 600W for its 200*200*45mm size. The plan is to have 4 of them connected in series + a dual-d5 pump all mounted into an inclosure. Many designs were scrapped, e.g. Taken into consideration of the cost, size and functionality, I've settled with this design. So parts are ordered Some serious sanding and polishing needed.