Using the sun's energy to heat water is a smart and affordable way to go green. A DIY solar water heater can cut your ...

And that begs a caution for anyone considering a DIY solar water heater: Don't forget to include hoisting it onto the roof, ...

There are a lot of DIY solar water heater designs out there, but you'd be hard-pressed to find one simpler, cheaper, and ...

Essentially, it allows the water heater to get much hotter during times when solar energy is available, and lets it drop to lower values before running the heater on utility electricity during ...