Vitruvius - 10 BC |
Cunliffe - 1969 |
Bernan 1 - 1845 |
Billington - 1982 |
Bernan 2 - 1845 |
ASHRAE - 1994 |
Bernan 3 - 1845 |
Manfredi - 2014 |
Hypocaust Examples |