Broilmaster R3 Infrared Propane Gas Grill Built In. R3 + BHA. Built-In Gas Grills. The Broilmaster Infrared Series gas grills offer independent burner management with 40,000 BTU dual infrared burners, producing up to 1600 degrees Fahrenheit to instantly vaporize drippings and cook all foods to perfection. Broilmaster R3 grills also feature 695 square inches of total cooking area, 3 level adjustable cooking grids and multi-position lid stop to provide a broader temperature range, unlike other all infrared grills. This grill includes stainless steel built-in kit.