Gradient's advanced window unit can heat and cool 500 square feet of your home. And you won't need an electrician.

You can reach Jon at [email protected] Expertise Energy, Solar Power, Renewable Energy, Climate Issues, Virtual ... model different is that it goes far beyond cold air. The Mark 3 uses heat pump ...

he’s set up a model for his home to compare the behavior of a heat pump and a propane furnace. A switch model already in LTSpice with built-in hysteresis takes the place of the thermostat.

The Fraunhofer ISE has designed a novel method for assessing the potential of low-temperature heat sources for large-scale heat pumps. The five-step process was tested on the German city of Fellbach, ...