I was going to suggest Vermont Castings propane grill. Very expensive and heavy (cast parts). Ours is on it 10th year and other than the cover wearing out (in the weather 365/yr) and well used, it works flawlessly. Heats higher than 700degF, 4 burners, no problem with providing low heat for smoking, etc. The warranty is 10yrs on burner and grates and 25yrs on the cabinet! Built in USA (Vermont) but unfortunately when I went to their website, they may have stopping producing these in 2015 based on the last brochure I could find and they aren't listed in their products section. It appears they are focusing only on wood burning stoves now. If you can find one I highly recommend them.