Free Book: Sustainable Energy — Without The Hot Air

I’m very glad to see the publication of a book called Sustainable Energy – Without the Hot Air. Don’t be fooled by the cover — this is book is a lively look at sustainable energy. I liked the way reviewer Cory Doctorow describes the book on Boing Boing: “This is to energy and climate what Freakonomics is to economics: an …

Solar Evacuated Tubes: Free Hot Water

For solar water heating in your home, there are basically two types of solar collectors: conventional flat-plate collectors and evacuated tube collectors. Evacuated tubes have a number of advantages: the work on overcast days, in colder weather, and the tubes can be installed and replaced individually without special tools.

Endless Hot Water: Takagi Heaters

Takagi water heaters do not have tanks, instead they heat water instanteously using a gas burner. They are efficient and powerful — even the smallest heater, the Takagi T-KJr., can produces 180 gallons of hot water in an hour, but weighs only 30 pounds and is 20 inches high. They run on propane or natural gas. Computer controlled electronic ignition …

Hot Electric Scooters

What are the hottest electric scooters out there? Today, one of the most popular models currently is the eGO-2 Cycle which combines the best features of a bike and an electric scooter. The eGO can be used as a bicycle but has all the equipment of a scooter, including headlights, turn signals, brakes and throttle. With aluminum silver-plated chassis it …