Have a Rayburn 80 solid fuel inset stove and it supplies 6 radiators which are connected by microbore piping and the downstairs radiators dont seem to get any where near as hot as the upstairs ones, have checked the pump and its ok, bled all radiators and have no air in, bled the pump and no air. To be fair has been like that since we moved in its just as its so cold no its very noticable.
Things I am considering are to get a company in to power flush the system but not sure if this will improve things - does anyone have experience of having their system power flushed?
Maybe consider replacing the Rayburn 80 with a more efficient multifuel stove - dont know the output that the 80 is as it must be at least 20 years old and cant find outputs on the net and local dealers have no knowledge of this type (typically in the 70s/80s both Rayburn
80s and Parkrays (very similar) were installed in lots and lots of council properties)