A friend has the older BBQ300 model. Similar in design 'cept it has the pellet hopper inside. (What were they thinking!). Anyway they fixed that with the 400. He wishes he had purchased a Texas Grill (BBQ075) instead, for a lot of reasons. 1) More sq. inches of Q space. 2) Less $. 3) The BBQ300 (and by the looks of it the 400) have no chimneys. There's a vent along the entire length of the back side. Any little bit of wind just kills the temp. IMO it's a piss poor design. If I were in your shoes I would get the Texas Grill (BBQ075). Cheers!!!