Andrew Blok covered home energy, with a focus on solar, and navigated the changing energy landscape to help people make smart energy decisions. He's a graduate of the Knight Center for Environmental ...

Crack of dawn, chilly tile floor, staring at yourself in the bathroom mirror, and you’re waiting, wondering when the water will get hot. If the fixture is directly over the heater it’s a short delay.

If you have a house, you probably have some sort of hot water heater. But there’s no universal temperature for “hot” water—this is something you have to set yourself. So what’s the ideal hot water ...