[Darrell]’s idea was simple enough. He hooked up solar panels to just the bottom heating element of his hot water heater. This cut his power bill in half. His calculator is now up at pvh20.com ...

Debating on whether you can DIY your new water heater installation? Experts recommend leaving it to a trained plumber. Here's why. Sam Becker is a freelance writer whose work has appeared in and ...