There is no safe that can protect your valuables indefinitely against fire.
Many safes give little burglary protection as just a fire safe.
This is why many people opt for a fire safe with a U.L. burglary certification appropriate for what the safe will be used for. Media protection can be attained in several different ways - Some pricey, some very affordable. Ask a sales rep. A burglary safe has been tested and rated against an opening attack. A fire safe has been tested and rated against a fire.