“So the size of a heat pump water heater (along with its efficiency) will determine how quickly the water inside the storage ...

Water heating is the second-largest energy cost for U.S. households. But you can save with a more efficient water heater, ...

When it comes to saving energy, should your home be utilizing a tankless or storage water heater? We have the expert-approved answers for you.

German startup Nexol Photovolthermic AG has unveiled a 1,500 W water heater that can use photovoltaic energy without an additional converter. “The system can be ordered in three configurations ...

Hot-water system on the blink? Unless you really love cold showers, you're going to need a new one – fast. Do you want gas, electric, solar or heat pump? What about a storage tank or instantaneous ...

A heat pump water heater looks similar to the storage tank heaters most of us are used to. But it contains a heat pump unit, usually on the top, that pulls heat from the air to heat the water.