An electric heater is a device that converts electrical energy into heat to warm up a space. It typically uses resistive heating elements, which generate heat when electricity passes through them. Electric heaters come in various types, including portable units, baseboard heaters, and wall-mounted models, making them suitable for different settings. These heaters are commonly used in homes, offices, and other buildings to provide comfort during cold weather. They are often preferred for their ease of use and quick heating capabilities. However, it's important to consider energy efficiency and safety features when selecting an electric heater for your needs.