Three years ago, Ted Treadwell turned his water heater into a battery. His home in Santa Rosa, California, had relied on a gas-powered furnace and water heater for a quarter-century to stay warm. But ...

Nowadays,​‍​‌‍​‍‌​‍​‌‍​‍‌ hot water is not only a luxury, but it is something that most of us expect even when we are off the grid at a campsite or at a music festival in the woods. The BougeRV ...

Two years ago we covered the launch of the Aquanta on Kickstarter; it's a water heater controller that learns your habits, and adjusts your water heater’s energy use accordingly. But saving energy isn ...

Here is a simple heater circuit that can be operated from a 12V battery. The first part of the circuit is an astable multivibrator build around the two transistors Q1 and Q2 . The ON time of ...

The Chinese manufacturer said their new residential heat pump water heaters deliver a coefficient of performance of up to 4.2, with a heating capacity ranging from 4.5 kW to 5 kW. The units are ...

With the availability of cheap modules, it has become easy to hack/make stuff at home and home appliances see the most creative hacks of all. In one such hack, [Vadim] takes the DIY route to adding ...

When the sun shines at its brightest, many of Australia’s 1.3 million homes with rooftop photovoltaic (PV) solar panels generate more electricity than they use. When this happens, excess electricity ...