pantsparty

I believe you have to use 0.200 W/mK = R = (L fat) / k; solve for k and now you should have a new value for R which is (L fat + L fur) / k and assume that the fur you add simply increases the length of the fat insulating layer.

I'll be honest though, this process is not working for me.

It may be that you must also change the Area variable to contain both the Radius to the fat layer and the thickness of the hair