My husband purchased the Yukon from their crowd funding they had. We were excited to get it and loved how it looked on our backyard. The first couple of times we used it, it didn’t have too much smoke. The last time we used it, there was smoke billowing from the top and we all smelled like a forest fire after we came back inside. My neighbors behind us and on the sides of us all complained about the smoke and smell coming from our backyard. We didn’t overfill the unit or add any sort of fuel so I don’t know what happened. Either we have a defective unit or the company has false claims about their product. Otherwise the Yukon is visually pleasing if that matters to anyone that wants to get it. Just be aware that this is not smoke free