I made the big mistake of buying a used portable space furnace for sale on ebay. This was something I should have never done; Because buying portable Heating in addition to Air Conditioning component used is going to mean that its lifespan is going to be who knows how much shorter than if you bought it brand new. In this case, the portable space furnace that was for sale on ebay that I bought fully stopped toiling within a month of me having it! I was pretty mad to be honest. So I filed a dispute and demanded a full refund including the shipping money to ship this heap of junk back to the seller who sold it to me. I talked to a few other people who had bought portable space furnaces and portable air conditioning units used on ebay and other stadiums on the internet and they all had similar stories as mine. This just proves that the only way to go is going to be to buy a portable space furnace or a portable air conditioning program brand new. You can buy it from ebay if it is modern or anywhere else on the internet. Just be sure that the portable space furnace or portable air conditioning program that you are buying which is for sale is brand modern and still sealed in the package! Otherwise there is a nice pick it will be broken and not work shortly after you absolutely buy it! I l earned a nice lesson by all of this and will never do something love this ever again in my life.