We Must FIGHT The Fire
OK, you have a Rambo complex which you are projecting onto your computers and data.
Your first line of defense is avoiding having the fire start in the first place. Your second is not caring that it did because you (a) wisely backed up everything to separate physical location and (b) had good insurance and paid the premiums.
But nooooo, you want equipment and data that will give the fire the proverbial finger.
One such option is The Information Safeguard System™ from The Datafortress™.
This system takes the fireproof lock-box to a whole new level. The Datafortress is intended to protect your whole system in the event the room in which it is housed burns.
These kinds of systems are very expensive, but may be important if you run the kind of business where downtime can cost you a fortune.
(The technologies in this area are so rapidly changing, and retail pricing is so scant, that I’m reluctant to give much guidance other than to say that yes, you can in fact put your entire computer system except the input and output devices into what amounts to a fireproof box. See Resources section for more on such boxes for your data and equipment.)
There are conventional fire-fighting methods also, like fire extinguishers.
Even if you never get near a fire, you still need to worry about heat, since your computer itself generates enough to cause harm!
Dangerous sources of heat can come from inside your computer!
There are several sources of heat inside your computer. These include hard drives, integrated circuit boards (ie “motherboards”), power supplies, and batteries.