On Thu, 10 Nov 2011 22:06:23 -0000, Roger Chapman wrote:

On 10/11/2011 21:42, Lieutenant Scott wrote:

On 10/11/2011 20:30, Lieutenant Scott wrote:

Why are they called radiators when they are primarily convectors?

ISTR that it is roughly even stephen but can't remember whether the
information relates to modern panel radiators or the old fashioned
monster cast iron ones which were the original radiators.

Probably the old ones. You can test yourself, just see how much hot air
is flowing up form the modern ones (there's a reason for that concertina
stuff inside). And you can't feel anywhere near as much being radiated.
Mind you it might help if they were black, but then you'd need brighter
lights,

Probably, but possibly just finless. The radiator I am sitting next to
is a single panel with no fins. Fins make a substantial difference -
about 42% greater output according to one site I checked.

I've never seen a finless one, what a strange idea! Even my slimline single panel hall radiator has fins at the back.

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