Lets be reasonable here. If your house is subjected to a dryer vent fire , or grease fire on the stove , which then begins to spread to other rooms - 911 called with reasonable response time , and your gun safe has some level of fire rating you are probably going to be ok.
If your house is at the center of a firestorm which utterly destroys everything for a mile in all directions - all bets are off.
Only a well designed underground bunker would save your guns in the firestorm , and they do not sell those at WalMart.
This is basically what I was going to post.
FWIW: I am a retired professional firefighter. I worked in a major US city (not a rural area).
There are a lot of things to consider with this subject.
Basically, if you live in a place that has a full time paid fire department, and they have an adequate water supply, and someone discovers the fire fairly quickly..............and you have a fire rated safe: the guns are going to be fine. Hell, I have been on dozens of legitimate house fires where guns were leaning in the corner and other than getting a lot of smoke, they were probably fine.
If your house is on fire and it takes the fire department a half hour to get there, the odds go down. If the fire department that responds stand out in the yard and spray water in the windows, the odds go down. And so on. There is no one right answer.
People in these threads tend to present absolute worst case scenarios and then declare that fire rated safes (or any kind of safe) are worthless. The picture in the original post is similar to photos of ground zero after a nuclear bomb went off. Just a pro-tip: if there is nothing left of the house other than a pile of ash or a few bricks, or any of the houses in the neighborhood .............then yeah, the safe isn't going to do you much good. People tend to post scenarios where the fire is unvented, and there is no attempt to fight the fire before the building collapses.............. and then try to imply that is a typical house fire. I should add that if you live in a very rural area, that might be the case. But for the majority of the US population, that isn't the case.
But I would say that barring anything like a disaster or professional thieves that happened to target your house or something like that...........I would say a safe is a valuable thing to have.
FWIW: Just a wild guess, not based in any way on fact: but.........I would be willing to bet that if my house burned to the ground, the guns in my safe would probably be OK. Not because it is any special safe, or because I know something nobody else knows. It is just that my safe is in the basement. Against a masonry wall. Heat rises. The basement would remain relatively cool. Smoke rises along with heat. Once the fire progressed to the point the entire upstairs was gone or collapsed, the fire would be vented to the outside which makes the fire much cooler (inside the building): this is why you see firefighters cutting holes in the roof.....or one of the reasons.
But I really don't see that happening. Although I don't live in town, I do live in an area serviced by a full time paid fire department and I have a hydrant in my yard.
