The 4-oven Aga features a Boiling Plate and a Simmering Plate complete with the Aga hallmark chrome insulated covers, plus a Roasting Oven, Baking Oven, Simmering Oven and Warming Oven. It is available in either natural gas or propane and 15 delicious colors. click here to see how it works. ¢4 Radiant Ovens ¢2 Hotplates ¢Warming PlateThe 4-oven Aga features a Boiling Plate and a Simmering Plate complete with the Aga hallmark chrome insulated covers, plus a Roasting Oven, Baking Oven, Simmering Oven and Warming Oven. It is available in either natural gas or propane and 15 delicious colors. click here to see how it works. ¢4 Radiant Ovens ¢2 Hotplates ¢Warming Plate