When piping up a C/H system as long you have a flow and return to each rad is it ok. As in I don't need the flow on the left and return on the right every rad they can be the over way around on some?
A flow and return are certainly required, although there is somewhat more to consider, such as pipe size, length, heat output of the radiator(s) etc.
Doesn't matter which end is flow / return but you will need to know what each pipe is, as some valves must be fitted so that water flows through them in a certain direction.
so as long as I have a flow and return to each rad it doesn't matter if there the to opposite sides the rads as long as bio functional rad valves are used?
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