[Stoves] Heat transfer and in-line water heater

[andrew]

On Sunday 09 December 2007 21:58, Steve Taylor wrote:
> >> But radiation heat transfer increases as the FOURTH power of
> >> temperature and can travel significant distances.
> >>
> >> Qr(T) ~ T2^4
> >>    
>
> Temperature DIFFERENCE.

I don't think so Steve, that's true of conduction (where adjacent 
atoms jostle each other to exchange energy) but radiation is 
absolute and is related to the 4th power of the absolute 
temperature.

The hieroglyphics above are scientific stuff, meaningless to the lay 
person without a guide to the meaning of Qr(T) or that T2 is 
temperature referred to the Kelvin scale.

AJH