Gas ovens are the most time- and energy-efficient ovens to use. The most common default setting on a modern oven is 350 degrees. It should only take a gas oven approximately 5 to 8 minutes to reach this temperature. This is half the time that an electric oven would take to reach the same temperature.
Time and Energy Efficiency
Allow for Higher Temperatures
If you need to reach a higher temperature, be sure to allow for more time. Reaching a temperature of 450 degrees could take up to an additional 5 minutes.
Gas ovens are fast and energy efficient. If you cannot wait the 10 minutes or so it will take to preheat your oven, you can put your food in beforehand, just be sure to add a few minutes of extra cooking time. Each oven is unique and will fit somewhere in the average range of preheat times. Examine your owner's manual for specifics on your individual oven.