On Mon, 28 Dec 2015 17:09:09 -0800 (PST),
wrote:

Heat's first propensity is to rise. Take care
of that first. The United States of America
remains in 2015 the most under and uninsulated
country on earth - residentially.


Wrong. Hot air rises. Heat energy travels to attempt equilibrium no
matter the direction. If the floor is not insulated properly the heat
will travel to it.