Hot water cylinders (HWCs) are one of the most common scrap items brought to Auckland yards by plumbers and homeowners. A standard New Zealand domestic hot water cylinder contains a copper inner tank wrapped in an insulated steel outer jacket. The copper content — typically 8–15 kilograms in a full-size cylinder — is what gives it value. To maximise your return, some sellers strip the outer jacket and insulation to expose the copper, which then qualifies for a higher copper grade. At endless metals, we accept hot water cylinders whole (graded as mixed material) or stripped (graded by copper quality). Either way, drive in to our Onehunga or Wairau Valley yard and get paid on the spot.