STOP Paying for Heating Oil — The Old Military Way to HEAT An Entire House

Heating oil is forecast to cost over 31% more this winter. Nearly 2,000 years ago, Roman army engineers on Hadrian's Wall beat the cold a different way: they heated the stone, not the air, with one fire under the floor. In this video: how that military heating system worked, the catch nobody talks about, and simple ways to use the same idea at home this winter to burn less fuel and stay warm, plus the safety rules you can't skip. #heatingoil #military #tricks