Your oven should indicate the user, usually with an indicator light on the control panel when it is at its set temperature. It may take a while to cool down the oven. Fans are popular due to their versatility. They offer even heat distribution, quicker cooking times and other advantages. https://ovensandhobsuk88468.goabroadblog.com/30118061/can-a-built-in-single-gas-oven-and-grill-be-installed-in-your-kitchen