Larkin's thermosyphon solar air heater
Building a CNC router
Dublin Passive House
Measuring a staircase with a 90 degree winder turn
Rocket Stove - you can often heat your house with little as recycled yard trimmings
ECONSTRUCTION: December 2013
I like this one! Nice stove top. not sure if it's a rocket stove though.
Just put this up because it shows how to make it.