AGA's own figures for expected energy consumption for their two-oven AGA support this criticism, suggesting average consumption of 40 litres of kerosene or diesel fuel per week, 60 litres of propane gas per week, 425 kW⋅h of natural gas per week, or 220 kW⋅h/week for the electric models. This would indicate that the smallest traditional two-oven gas AGA providing simple cooking functions (i.e. no water heating or central heating) consumes thirty-eight times as much as a standard gas oven and hob, almost as much gas in a week as a standard gas oven and hob in nine months.