When choosing a fireproof safe it is important to check the resistance rating. Now you can usually follow the lines of the more expensive the safe, the longer it is likely to be able to withstand fire. Nevertheless, fireproof safes are all put through stringent testing before they are rated.
Generally speaking fireproof safes are assessed on two things; the amount of time they are able to withstand fire, and the temperature they are able to endure. Depending on your individual needs and the likelihood of a fire hazard, you should take this rating into account when choosing your safe.
