What feature distinguishes electric heat pumps from traditional electric heating methods?

Electric heat pumps are distinguished from traditional electric heating methods primarily by their ability to provide both heating and cooling functions. Unlike conventional electric heaters, which typically only generate heat, electric heat pumps operate by transferring heat rather than generating it. This operation allows them to extract heat from outside sources, even in cooler temperatures, and provide heating within the home. Additionally, in warmer months, they can reverse this process to function as an air conditioning system, effectively cooling the indoor space.

This dual functionality makes heat pumps versatile options for year-round climate control, setting them apart from traditional electric heating systems that serve a singular purpose. The other features mentioned in the options do not accurately portray the capabilities of electric heat pumps; for example, their effectiveness is not limited to warm climates, they certainly require electricity to operate, and they do not specifically increase humidity levels.