It can be difficult to figure out how close to a wall or other furniture you should put your space heater. Placing your space heater in the middle of the room doesn’t make sense because 1) it will look bad, and 2) you will always be bumping into it.
So, where is it safe to put a space heater?
The answer is that it depends on the exact heater you have, and that you need to read the documentation specific to your heater. There should be “safety” labels and pictures on the box of the heater when you buy it, in the user manual, and even on the heater itself.
The user manual is the best place to look, because it should give you exact guidelines for how far it needs to be from wall. Keeping it away from curtains, furniture, and bedding is also a good idea.
You should also be careful about leaving it running when you are not home. I’ve seen heaters with a safety feature where they automatically shut themselves off if they get knocked over and over heat. I would definitely buy one with that feature.