I am getting crazy values so I need help. I want to find out how many watts or even Kw I need to heat up a space. Here are the givens: Sizes: Width:1.1176m, Length:1.6764m, Height:1.8288m Temp-outside: -9.44C Temp-inside:12.78C Material: Steel[thinckness(.00635m), thermal K=43] I just want to calculate 1 face(Front--?widthxheight) of the wall because that will help me on the other faces I did Q=(k*Area*Temp Difference)/thk Q=(43*2.04*22.22)/.00635 Q=306950.5watts or 307kW. Does this mean I will need at the minimum at 307kW heater just based on one wall and that mean it will be even greater by alot!!!!!!That seems too high or is this correct and I am not giving the proper information to solve the problem at hand?? Steel has a very high K so it might make sense. I am concerned about why making the mat'l thinnner would need more watts to make a higher temperature difference ?