Home Energy magazine

"What's the most energy-efficient water heater I can buy?" "What brand is the best?" "What heater features should I look for?" We get these questions all the time. The only quick answer is one of hydronics wizard Dan Holohan's favorite replies: "It depends."

As warm weather comes upon us, many people in the western United States will be starting up or replacing evaporative coolers, or buying them for the first time. Proper installation and maintenance of these systems is very important, and recent improvements in the technology change how to best handle these tasks.

"Customer pay" financing programs are being tested to replace traditional subsidized energy efficiency services in a deregulated marketplace.

Solar pool heaters survived the boom and bust solar years of the 1970s and 1980s. Today they are even popular and cost-effective in parts of the country where many people think solar is impractical.