I have exclusively purchased Weber gas grills for over 20 years. This summit grill is by far the most disappointing. The fire box is not a cast construction like the genesis and summit grills. Rusted out along with the frame and cabinet. And yes I kept it covered with a Webber grill cover the entire time Iowned it. Replaced it with a genesis 2 with a side burner which has a cast fire box. I am hoping to be as pleased with the replacement as I have been with all my Weber grills before the summit.