If you're looking to keep a room warm, there are a few different devices that can help you out. One option is an electric space heater. These come in a variety of shapes and sizes, and some even have features like timers and remote controls. Another possibility is a gas-powered space heater. These work by heating up the air around them, and they're usually very efficient. Finally, you could also use a wood-burning stove or fireplace. These can be great for ambiance as well as heat, but they do require some maintenance. Whichever route you choose, make sure to read the instructions carefully before using any device to keep your room warm!