I purchased it last month and used it one time for 2 hours at most and decided to get a larger one instead of using these two. I have box it came in and it looks like it is brand new. I don't think you can tell it has ever been used. Selling this one for 75$. Price is firm. The other one is the exact same one just purchased last year. I am selling that one for 50$. They are great heaters and can be used indoors or outdoors. I have had no issues at all and highly recommend these heaters. I got a bigger one so I no longer need these.