The German company said its new device features a DC input supporting up to 3 kW of photovoltaic power. The heating output can be continuously adjusted between 0 W and 1,000 W. Priced at €549 ($635) ...

As the nippy air starts to permeate our homes, many are exploring ways to fend off the cold without resorting to cranking up the heating and incurring hefty energy bills. While heated blankets and ...