Most people still rely on outdated, inefficient heating and cooling systems — such as air conditioners and furnaces — but heat pumps can replace both appliances. The upfront investment may seem ...

Physics spoiler alert: There are actually two methods to move water that don't require an external power source—but that’s not the same thing as running on free energy. The first method is the siphon ...

Heat pumps can reduce carbon emissions associated with heating buildings, and many states have set aggressive targets to ...