When storing cash at home, many people assume that placing it in a safe is enough to protect it from fire. But is that really true? Will paper money burn inside of a safe during a house fire? The answer depends heavily on the type of safe you're using.
The Vulnerability of Paper Money
Paper money is extremely flammable. Just like important documents, it can ignite at around 451°F (233°C). During a residential fire, temperatures can easily reach 1,100°F to 1,500°F—hot enough to destroy most household contents within minutes. A standard metal safe without fire protection offers little defense against such extreme heat.

Are All Safes Fireproof?
Not all safes are created equal. Many inexpensive safes on the market are only designed for theft deterrence, not fire resistance. If you store cash in one of these, it may not survive a house fire.
To prevent loss, you need to store your money in the best fireproof safe—one that is tested and rated to keep internal temperatures below the combustion point of paper.
What to Look for in a Fireproof Safe for Cash
If you’re serious about protecting your cash, consider these essential features:
1. Certified Fire Ratings
Look for safes with UL or ETL fire certification. A UL Class 350 1-hour rating means the internal temperature stays below 350°F for at least 60 minutes in external fire conditions—enough to protect paper money.
2. Internal Insulation
High-quality fireproof safes contain multiple layers of fire-retardant insulation that block heat transfer. This is key to preventing ignition inside the safe.

3. Water Resistance
Fire is often followed by water damage from sprinklers or fire hoses. A waterproof and fireproof safe adds another layer of security to preserve your bills.
4. Size and Locking Mechanism
Choose a safe that not only fits your cash storage needs but also includes secure locking—either digital keypad, key, or biometric—to prevent theft along with fire damage.
Expert Tip: Double Protection Method
For enhanced security, store your cash in fireproof bags inside the fireproof safe. This two-tier protection increases the survival rate of your money in extreme scenarios.
Final Verdict: Can Cash Survive a Fire Inside a Safe?
Yes—if it’s stored in a certified fireproof safe. The best fireproof safe is designed specifically to protect valuables like cash, passports, and documents from high heat and water exposure. Don’t rely on basic safes or locked drawers; your money deserves better protection.
Explore Our Best Fireproof Safe Options
Ready to protect your cash from fire and water? Browse our collection of the best fireproof safes—tested, certified, and trusted by thousands of customers.