Ebay offers Sentry Safe 18.6" x 9.3" x 23.8" Fire Chest Safe for $139 (reg $174.34) with free shipping.

Product Description:
This rugged safe is equipped with a hidden keypad and a loud alarm, immediately alerting you if anyone tries to access the safe without authorization. It's fire- and water-resistant to provide maximum protection of your valuables, digital media and documents. Digital hidden keypad entry features a loud, audible alarm for double security. Fire-resistant up to 1,700°F for 1 hour to protect your valuables. Water-resistant design protects against flooding. Keep paper documents safe. 1.23 cu ft of interior spaces includes a multi-positional tray for flexible organization of smaller valuables. 90-Day Warranty