I have an ancient steel tubular radiator that fits nicely into a purpose
built alcove in my hall. It is rather attractive in an industrial sort
of way and has therefore been retained whilst all the other have been
replaced with slim modern units.

Problem: it has gained many coats of pain over the years, many of which
have run and generally been applied badly.

Question: do I strip it with Nitromors (or equivalent) and then
repaint it with difficulty or are there places that will dip, strip and
repaint radiators?

TIA Richard