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

The latter are what are called portable heat pumps, and to me, they seemed like an energy dream come true: Gas-free heating at a fraction of the operating cost of a conventional electric ...

You'll need a separate air conditioner unit for cooling. A new spin on the hot water tank This heat pump can warm up portable water just like any other hot water heater, but more efficiently.

While some renters are not in a position to, say, swap out their homeowner's furnace, some renters with flexibility might be interested in a portable heat pump. Portable heat pumps can go into a ...

The Mr. Heater Buddy Flex Portable Radiant Heater is on sale ... works with one-pound propane cylinders) for reliable heat, and it can pump out up to 11,000 BTUs, so you’ll really feel the ...

In the main building, the heating system works better, though Raymer noted that some classrooms on the northwest side can drop into the low 60-degree range. More portable heaters are used in those ...

More than a third of Americans rent. While some renters are not in a position to, say, swap out their homeowner's furnace, some renters with flexibility might be interested in a portable heat pump.