Since the system also knows when people will be back in a room, based on patterns of use or input from homeowners in the app, the tech can also heat or cool it slowly to save energy, rather than ...

Scientists have developed a new model for heat exchangers of heat pumps, combining strengths of numerical modeling and ...

Those furnaces generate heat by burning fuel. In theory, for every one unit of energy input, they can only produce one unit of energy output. In reality, even the most efficient gas-powered ...

Heat pumps perform somewhat of a magic trick. They can take one unit of energy input to yield three to four units of heat. Since nothing is burned, nearby air quality improves. Because heat pumps ...

In a big city like New York, your building might have a boiler that burns oil or gas to heat water or produce steam, which feeds wheezing radiators in every unit. Electric-resistance space heaters ...