A patio heater is a great way to enjoy your outdoor living space even when the temperature is cool. They come in a variety of shapes and sizes, so there is sure to be one that will fit your needs.To use a patio heater, first read the manufacturer2019s instructions. Some heaters require you to start a fire prior to using them, while others simply need to be plugged in. Once it is turned on, stand or sit in front of the heater to feel the warmth.Be sure to keep any combustible materials like mulch or leaves at least three feet away from the heater. Also, never leave a patio heater unattended, and make sure it is turned off when you are done using it.