A rocket mass heater is a combination of a rocket stove and underfloor heating. A rocket stove works by having such a strong draft created by the heat rising up the chimney that the flames can’t ...

The bottle rocket challenge: faces from across the BBC compete to build and launch bottle rockets. Whose will fly highest? Could you do better? • As well as how-to films, all experiments are ...

Rocket stoves are an interesting ... of hot water to something like an off-grid home as well. [Little Aussie Rockets] starts off the build by fabricating the feed point for the fuel out of ...