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  1. jack2525

    Simple Ductulator (Just like a Paper Copy) Download?

    Hi all, I have downloqded quite a few ductulators and none of them seem to do what i would llike them to do. I really need something that works just like a card copy. Something where you put in the spped in m/s and the quanty and it gives you the ductsize in rectangle and circular sizes aswell...
  2. jack2525

    Wall Contruction, Temp At Each Layer

    Ok thank you, So my calc will look like this R1+R2+R3+R4+R5 =Rt (Toal Series Resistance) My delta T is 23c Rt / delta t = power per unit Resistance of layer / power per unit = Temp at that layer!?
  3. jack2525

    Wall Contruction, Temp At Each Layer

    Hi All, I have a wall that i have calculated the u-vlaue for but i now need to find the temperarure at each of the layers that build up to make the wall. I have the internal and external temperatures and the resistances of the components that build up to make it. Is there any kind of formula...

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