Gourmet recipes are ready to serve faster with convection cooking. Made of solid 304-stainless steel, our burners emit up to 93,000 BTU with our 5-burner grill (72,000 BTU ? 4-burner grill) and have a ten-year warranty. Cal Flame Convection Grills are also equipped with premium features and added value. Each Convection Series Grill is crafted using 304-stainless steel and includes signature features such as cast stainless steel burners with independent ignitor switches and heavy-duty V-patterned grates on a large cooking surface. If you are looking for a reasonable solution to upgrade to a pro-style grill in your outdoor kitchen, the Cal Flame 4-Burner Convection Built-In Propane Gas Grill is your answer. The Cal Flame Convection Series 32-inch built-in gas grill (BBQ18874CP) features four (4) powerful cast stainless steel burners rated at 60,000-BTUs and a full-size centrifugal fan that uniformly circulates heat throughout the 800 total square inches of cooking area, resulting in approximately 50-percent quicker grilling. The cooking area includes a 2-position warming rack, interior lights for grilling day or night, and a built-in hood thermometer to easily monitor grilling temperature at all times. A 12,000-BTU infrared rotisserie backburner comes standard, along with a 12-volt rotisserie motor and a spit rod capable of holding up to 35-pounds of meat. This grill also features the Cal Flame signature one-piece handle, 304 stainless steel construction, and a full-width drip tray that catches every byproduct for easy clean-up.