From the category archives:

Design

DIY Solar Powered Alarm Clock – Clock Selection

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by Tim Fulton on December 31, 2012

Clothes Dryer Heat Recovery Systems

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by Tim Fulton on December 17, 2012

Two Story Solar Hot Air Collector

Solar Hot Air Collector

by Tim Fulton on April 23, 2012

DIY Pop Can Solar Air Heater

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by Tim Fulton on October 24, 2011

DIY Sanyo Air Source Heat Pump Install – Getting Things Ready

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by Tim Fulton on November 11, 2010

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