Your oven will indicate, usually by a light on the control panel when it has reached the set temperature. It may take a while for your oven to cool. Fan ovens are widely favoured because of their versatility. They offer even heat distribution, quicker cooking times, and many other benefits. https://ovens-and-hobs-uk93086.vblogetin.com/36362120/can-a-built-in-single-gas-oven-and-grill-be-installed-in-your-kitchen