When was the first central heating...

[Kenneth Lott]

system invented and by who? Anyone who did not watch Modern Marvels know the answer?

[jking2]

The Romans around the first century. They had flue pipes running beneath their stone floors from one side of the building to the opposite, making the entire floor a heat exchanger.

Jim King

[James H. Bushart]

I think that it was Ork, the Neanderthal, who built his fire inside the cave under a hole in his ceiling. At least, that's what he told us but you know how these guys used to brag.

[Kenneth Lott]

Bingo JK, i never knew that before last night, the Romans were ahead of the times on many technologies.