Radiation heat% produced by a heating element?

[AstroC]

I have found an heating element, that is capable of producing 2000W of heating power. I am trying to determine how much of that power is due to radiated heat? Is there any such rule to approximate the percentages of the convection, conduction, and radiation heating?

 

[IRstuff]

No, because it depends on the geometry

TTFN

FAQ731-376

 

[AstroC]

Yes i know it depends on the area. Power = Area(Shape factor)(Boltzmann's conts.)(T1^4-T2^4). I am given the temperature T1 of the heating element, and the total power produced by heating. But am not sure how to determine the amount of power that is radiant heating. This link shows you the heating elements im dealing with

http://www.ptc-heater.com.tw/PTC_heaterFan_eng.htm.

Maybe that produce negligible radiant energy (I doubt it though).
Cool thanks