We have this wall that contains the window. The wall U$-$value is $0\mathrm{.}5\frac{W}{m^2}.K,$ Window U$-$value is

$1\mathrm{.}5\frac{W}{m^2}.K,$ Wall area $=10m^2,$ WWR is $60\%,SHGC=0\mathrm{.}6,$ airflow from the window is $100\frac{l}{s},$

Solar on the window is $800\frac{W}{m^2},$ no shading on the window. $To=40C,Ti=20C$

Calculate the total heat transfer through it$.(20$ marks$)$

Is there any other type of heat transfer you can not calculate? $(5$ marks$)$