I made the giant mistake of buying used portable heating & a/c equipment online trying to save a few bucks, however this was something I should have never done.
The portable a/c that I bought worked for a whole 2 afternoons before it was broke & not working anymore.
The portable space gas furnace that I bought which was used had some funny smell coming out of it when I turned it on, so I right away shut it off; Both the portable a/c & the portable space gas furnace were demanded refunds & then returned, however i do not guess what possessed myself and others to buy portable heating & a/c equipment that was used online. I thought that since I have bought other used things that worked out great & saved myself and others tons of money I could do the same with portable a/cs & portable space heaters. But I know not. It is just better, safer & less hassle to spend the full amount & go buy them in a store brand new. If you are looking to save money, wait till there is a sale on portable space oil furnaces & portable a/cs. This happens from time to time everywhere! You just need to keep your eye out to your local television commercials & local newspapers if you still get a physical papers. If not, study the paper online & you can look for store ads that may have portable a/cs & portable space oil furnaces on sale.