Cool air is more likely to came from windows since glass has less isolation
than walls. If you stay near a windows in a hot room, you can feel the cool
coming from the window.
This also makes easier to have a uniform temperature across the room instead
of having a hot spot where the radiator is and cool spots near the windows.

Regards,

Mauricio Jancic
Janso Desarrollos
Microchip Design Partner
www.janso.com.ar
info@janso.com.ar
(54) 11-4502-2983

> -----Original Message-----
> From: piclist-bounces@MIT.EDU [mailto:piclist-bounces@MIT.EDU] On
> Behalf Of Russell McMahon
> Sent: Tuesday, May 22, 2007 11:32
> To: PIC List
> Subject: [EE]:: Why are radiators usually installed below windows.
> 
> 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?
> 
> 
> 
>         Russell
> 
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