On Thu, 12 Dec 2019 16:42:15 +0000, R D S wrote:

It would be advantageous if I could connect up a rad with the flow and
return on the same side (top and bottom).

I get that best case scenario it will take longer to heat up, will it
take a lot longer? Will it fully heat up all?

Flow/return on the same side means derate by about 5%, i.e. hardly at all.

(unless it's a very long radiator, or you put the flow at the bottom and return
at the top...)


Thomas Prufer