According to the search results, medium-high heat on a stove or grill ranges between 375 and 450 degrees Fahrenheit. This temperature is ideal for direct grilling, indirect grilling, smoke-roasting, plancha, and salt slab grilling. It is also good for cooking hamburgers, sliced vegetables, fish, and chicken pieces. It is important to note that the temperature range for medium-high heat may vary depending on the stove or grill being used, and it may require some trial and error to determine the exact temperature. Using a thermometer, such as an infrared thermometer or a grill surface thermometer, can help to accurately measure the temperature.