Hello,

I was asking about radiators on the "CH pipe size" thread but the
discussion has moved on to radiator sizes rather than pipe sizes, so I
thought a new thread would be useful.

I just wanted to ask two last questions:

Is 300W a noticeable difference in heat output: I have found two
radiators for sale and their outputs differ by 300W, would I notice
the difference?

Is there a big difference between makes on panel radiator regarding
their outputs? Sorry to switch units but I was looking for a rad about
7000BTU and I see some makes I can use a 500x1300, others require
500x1400 and others 500x1600. Different makes of 500x1400 have
different outputs (hence question one above).

Thanks in advance.
Stephen.