Compost water heater / Guides

The Methane Midden compost water heater that surpassed its goal on kic
Plumbing and water heaters

Compost pile hot tub water heater

...water through a giant compost pile, it was brought from 7 °C to a blistering 62 °C. Not much more needs to be said that the video doesn't say. We love seeing stuff like this, if you come up with your own brilliant backyard inventions or hear of one, by all means tip us off.

Thermal batteries for passive solar design
Efficient home design

Thermal batteries: how to passively store heat

...water tank buried in the ground that is heated by solar thermal panels. Even this type of system is not new, the first house in the United States with an active solar heating system was built In 1939 on the MIT campus (Massachusetts Institute of Technology), and sat on top of a huge water reservoir that was heated by...

Snowboarder, Mike, Basich's, off-grid cabin in the woods with hot tub
Tiny house

Off-grid tiny house in the heart of the Sierras.

...water for the mortar was hand-gathered and he hand-mixed the cement that would eventually hold together approximately 175 tons of rock. Once his cabin was complete, with the help of friends he built the rope tow and then chairlift, essentially making his backyard their personal playground. Mike describes his accompli...