DIY energy, vehicle, home, and garden projects from previous volumes of MAKE.
BY ROSS ORR
Trick your thermostat into lowering your heating bill.
BY ROB ELAM
The best way to learn how to make your own backyard biodiesel is to start with a 1-liter batch.
BY ABE & JOSIE CONNALLY
With a motor and some piping, it’s easy to build an inexpensive, efficient wind generator.