I recently noted that Hawaii has enacted a law that requires all new homes to install solar water heaters. Eventually, Hawaii may have as many water heaters as Israel, where 90% of homes have solar water heaters installed. When viewed from above, the Jerusalem often glitters with the shine of the thousands of solar heaters… [Continue Reading]
Solar Water Heating is the first book I’ve seen that focuses solely on solar water heating. It’s a technique that’s been practiced since ancient times, but until now there’s been strangely few resources on the topic for a North American audience. The author, Bob Ramlow, examines state-of-the-art solar heating systems. He covers not only solar… [Continue Reading]
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.