Oh yes, I did notice that and have divided their figures by whatever the factor is for changing delta 70 to delta 50, completed about a dozen online BTU calculators and taken an average of the results.
Absolutely! Luckily the radiators I'm replacing are all thicker than the replacements, so it should just be a matter of packing behind the wall supports of the new radiators.
This is the radiator Reina Coneva Horizontal Radiator - Just Radiators which I think does.
Yes, I've seen variable length extensions. Could be just what I need. The nut and olive end will presumably fix to valves such as these Chrome Radiator Valves Angled (valvekings.com)? I've read somewhere...
I'm thinking about replacing a rather boring radiator with a "designer" one, just for cosmetic reasons. My question is; can I easily replace it with a slightly smaller one? The pipes are coming up through floor tiles (see picture) and I really don't want to dig those up in order to move them...