A space heater is a small, portable device designed to heat a specific area or room rather than an entire building. They are popular for their convenience and efficiency, allowing you to stay warm in chilly spaces without turning on the central heating. Space heaters come in various types, including electric, gas, and infrared, each with its own advantages and features. Using a space heater can help save energy and reduce heating costs, especially in homes where only certain rooms are used frequently. However, it's essential to follow safety guidelines, such as keeping them away from flammable materials and never leaving them unattended, to prevent accidents.