Answer
Propane was the gas used in the AGA cooker. It is a liquefied petroleum gas (LPG) that is commonly used as a fuel for cooking and heating appliances. Propane is a hydrocarbon that is composed of three carbon atoms and eight hydrogen atoms (C3H8). It is a colorless, odorless gas that is easily liquefied under pressure. Propane burns cleanly and efficiently, producing a hot flame that is suitable for cooking.