Profile Since 1966 AEI has supplied Commercial Gas Grilling and Patio Heating equipment to the Landscape Industry. AEI offers PGS gas grills in aluminum and stainless steel on a variety of mounting options. AEI also offers PGS gas grills with built in ONE HOUR TIMERS so that grills will automatically shut off in multi-user environments such as apartment complexes. AEI also offers the widest variety of Patio Heating equipment including Sunpak Horizontal Gas and Infratech Electric Patio Comfort and Sunglo Umbrella Domed in Propane or Natural Gas. AEI truly is your one source for gas grills and patio heating equipment.