The $300 Homestead Heater That Beats Your $30,000 Furnace (Science Explained)

Ever wondered about super-efficient heating that costs next to nothing? This video dives into the science behind rocket-mass heaters, showing you how a simple DIY setup can beat expensive furnaces and even uses less fuel! You'll pick up advanced vocabulary related to thermal mass and combustion while learning about a fascinating piece of home-building history.