On Wed, 2007-05-23 at 02:32 +1200, Russell McMahon wrote:
> A friend asks:
> 
> Industry practice is to locate heating radiators (most often fed via a
> reticulated hot water system) under windows.
> 
> Nobody can tell me why this is done and to my mind it would perhaps be 
> the
> worst place from an energy efficiency point of view although there may 
> be
> other reasons (like reducing convective draughts within the room  - 
> which
> can reduce the apparent temperature by several degrees) why it is a 
> good
> idea.
> 
> I would hence appreciate your commentary as to what you would expect 
> to be
> the optimum location for a radiator and why.
> 
> Any thoughts?

Same thing is done over here in North America with forced air heating:
the vents are almost always below the windows.

My guess as to the reason is you want the heat source in the coldest
part of the room. The windows are the coldest part of the room, so by
putting the heat source there that area of the room will get a little
more heat, resulting in a more even temperature in the room.

Just a guess.

TTYL

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