Hey guys,

My old radiator (or the element if thats the word) is old and corroded. Leaks are coming from both nuts and time for a change.

Here's the pic:
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So I was able to get a replacement unit but there are 2 choices. One is copper, and the other is steel. Which one should I get? The steel is HEAVY. The reason why I'm asking is because the current one is 'floating'. The supply and the return lines are holding up the radiator from the floor with big bends in the pipe. I'm going to use the same pipe but of course remove the bends and use right angles to correct this.

Copper or steel? Also, there's a shut off on the old radiator. Do I need it for the old one?

Thanks guys!