In article ,
jon wrote:
On Thu, 06 May 2021 13:10:17 +0100, Fredxx wrote:

On 06/05/2021 12:55, jon wrote:

What is this nonsense, heat is dissipated by radiation, convection or
conduction so how come efficiency becomes a problem.

For conventional central heating radiators most heat-loss is through
convection. Air is a poor conductor.

It seems there is less overall air flow for a tall radiator than long
for a radiator with the same area and construction.

So hardly nonsense.


So where does the heat loss go other than in the room..?

People do tend to use efficiency meaning how well it works, rather than
the scientific meaning. And it could well be a horizontal rad of the same
size as a vertical one gets heat into the room better.

--
*If PROGRESS is for advancement, what does that make CONGRESS mean?

Dave Plowman London SW
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