The FIRMAN Tri-Fuel Whisper Series provides fuel flexibility through automatic switching between gasoline, propane, and natural gas at the push of a button. Operating at 67 decibels and equipped with carbon monoxide safety shutdown technology, this generator suits RV camping, emergency backup, and jobsite power applications.

The compact 131-pound frame includes wheels and handle for site portability, with eco-mode functionality optimizing fuel consumption during partial load operation and reducing operating expenses.

• Tri-fuel: gasoline, propane, or natural gas switchable
• 5500W running watts on gasoline
• 5000W running watts on propane
• 4500W running watts on natural gas
• 6850W starting watts on gasoline
• 67-decibel operating noise level
• 5.3-gallon fuel tank with 14.5-hour runtime at 1/4 load
• 120/240V dual voltage output
• Carbon monoxide safety shutdown (CO Alert)
• Eco-mode for fuel efficiency
• CARB and EPA certified
• 131 pounds with wheels and handle
• 3-year limited warranty