Electric heat pumps are an energy efficient option for heating homes. There are several types of heat pumps including geothermal, which uses heat from the ground; air-source, which uses outdoor air; and ductless, which can heat homes without ductwork. While heat pumps are efficient, their effectiveness decreases at lower outdoor temperatures requiring more energy. Homeowners should regularly maintain their heating systems to save money and avoid damage. Minor issues can often be diagnosed and fixed without a technician.