According to Encyclopedia Brown #15 1/2, it takes at least 20 minutes to preheat an oven.
It typically takes about 10 to 15 minutes to preheat an oven before baking.
It typically takes about 10-15 minutes to preheat an oven to 400 degrees Fahrenheit.
The oven typically takes about 10 to 15 minutes to preheat before you can start cooking.
The time it takes for the oven to preheat to 400 degrees can vary depending on the oven, but it typically takes around 15-20 minutes.
An oven typically takes around 10 to 15 minutes to preheat before it is ready for use.
An oven typically takes around 10-15 minutes to preheat to 400 degrees Fahrenheit.
The time it takes to preheat an oven to 400 degrees Fahrenheit can vary, but on average it takes about 10-15 minutes.
A gas oven typically takes about 15-20 minutes to preheat before it is ready for use.
A gas oven typically takes around 15 to 20 minutes to preheat before you can start cooking.
The time it takes for an oven to preheat to 400 degrees Fahrenheit can vary, but on average it takes about 15-20 minutes.
It takes a long time because the light bulb isn't as hot or bright as a real oven
The time it takes for an oven to preheat before it is ready for use typically ranges from 10 to 15 minutes, depending on the oven model and temperature setting.