Masonry as thermal mass in homes has been in common use for centuries, maybe even millennia: http://www.greenbuildingadvisor.com/blogs/dept/musings/all-about-t

Masonry as thermal mass in homes has been in common use for centuries, maybe even millennia: http://www.greenbuildingadvisor.com/blogs/dept/musings/all-about-thermal-mass http://www.greenbuildingadvisor.com/blogs/dept/musings/all-a...