I have a macbook pro from 2011, a macbook air from 2013 and a retina macbook pro 2014. I had issues with heat dispersion with the macbook air but not with the m

I have a macbook pro from 2011, a macbook air from 2013 and a retina macbook pro 2014. I had issues with heat dispersion with the macbook air but not with the macbook pro and the retina macbook pro.