As a former volley FD member and truck captain, I can assure you that there aren’t any good locations for a fire safe.
All end up in the basement....period it’s just a matter of time before they end up there if they were not there in the event of a fire.
When I crank up the fire engine rollin a 1500gpm pump pushin water to 4 lines your basement will be a pool in short order.
Ive never seen firearms survive in a fire safe before. All end up in the basement flooded and ‘quenched’.
With today’s lightweight construction most houses are near the 15 mins or less to full engulf. 3-4 for safe egress.
Modern Homes & Increased Fire Risk | Safeco Blog
Factor in that typical response time in a city is 5 mins or so to arrive leaves very little time to save the house. Odds are dramatically reduced the further from town you are.
As others have stated they are theft deterrent devices at best.