Heat Pumps: Warming and Cooling With the Same Device

A heat pump can both heat and cool by moving heat rather than making it.
In winter, it extracts heat from outside air, ground, or water and brings it indoors.
In summer, it reverses direction, carrying heat out of your home like an air conditioner.
Heat pumps use refrigerants and compressors, just like refrigerators, but with reversible flow.
Because they move heat instead of generating it, they’re highly energy efficient.
Even cold air contains usable heat energy that pumps can capture.
Ground-source (geothermal) heat pumps tap into the Earth’s stable underground temperatures.
They reduce greenhouse gas emissions by replacing furnaces and traditional AC systems.
The main challenge is higher upfront cost, but long-term savings offset it.
Heat pumps show how one clever device can deliver comfort year-round with less energy.