I have a new radiator finished in anthracite with matching anthracite valves and pipes. I need to plumb the flow and return to the anthracite radiator pipes.
I usually use solder joints but I am assuming soldering is not going to work on anthracite? I am thinking of using Speedfit (which I've never used before). Will Speedfit work on anthracite pipework? If not, will a compression joint work on it? What is the recommendation?