This is a great heater, I got one for my husband for a gift.  The box was slightly beat up and the product was very beat up.  Needs to be shipped differently.  I called JM and they told me I needed to deal directly with the supplier.  I didn't like that but I did it.  I followed the suppliers requirements and sent and email and pictures of the damage. I was told 3-5 before hearing from them, which did not happen. I called to check status.  The guy I spoke with told me, "look, were very busy.  The 3-5 days is not going to apply.  we will get to it when we can."  I told him nevermind, I would deal directly with JM on this.  He said "fine" and hung up.  Customer service rating = 0  I called JM back and they were very apologetic.  They shipped a replacement, stat, which I received. It was mildly damaged but I can live with it given the hassle.  So, I say all this to say, it's a great heater, but requires better packaging and a much better supplier (or one that cares, really).