Fire Safes As Yale we are very proud of our range of fireproof safes. The safes use a state-of-the-art digital touchpad technology! It is easy to operate and withstands the heat produced by a fire for as long as an hour. YFM/310/FG2 - Medium Document Fire Safe YFM/420/FG2 - Large Document Fire Safe YFM/520/FG2 - X-Large Document Fire Safe YDM/420/FG3 - Large Data Fire Safe