When you have a portable space heater, depending on what kind of space heating system it is and how it runs, you may have to be very careful with it, then in general, when having any portable space heating system you need to be careful not to burn yourself by touching the main body of it after it has been on.
It has to cool off for at least 3 hours before you can even put your hand near the body of the space heater.
If you do not wait that long, you could end up with serious burns that will require a trip to the hospital! That is no joke! The other thing you need to be really careful of with portable space furnaces is that if you have one which has no safety turn off, you need to be sure you never knock it over! If it doesn’t have that auto turn off feature when it tips over, you could cause a serious fire in your home… Most portable space furnaces this month very come with that feature, but however, if you bought an old or older portable space heating system from a garage sale or on ebay, you will need to be sure and check if it does have that or not. My neighbor nearly burt his beach house down by buying a used portable space heating system that did not have this function. He just assumed they all had them and didn’t realise that the older model electric space furnaces did not have this; Because they are so hot, if the body of the portable space heating system even touches your carpet, the fire will start within less than a sixth!