FIRMAN T04073 5000W Tri Fuel Portable
A tri-fuel portable generator rated at 4,000 running and 5,000 starting watts, with a 5-gallon tank and up to 14 hours of runtime at half load. It shuts itself off if carbon monoxide builds up and has 120/240V output for a transfer switch.
- Running watts
- 4,000 W
- Starting / surge watts
- 5,000 W
- Fuel
- gasoline, propane, natural gas
- Best for
- Jobsites, tools and basic home backup on a budget.
- Not for
- Quiet campgrounds and RV parks, since it is an open-frame, non-inverter design.
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Specifications
| Running watts | 4,000 W |
|---|---|
| Starting / surge watts | 5,000 W |
| Fuel | gasoline, propane, natural gas |
| Inverter (clean power) | No |
| Runtime at 50% load | 14 h |
|---|---|
| Fuel tank | 5 gal |
| Outlets | 120/240V L14-30R, 120V L5-30R, 120V 5-20R |
|---|---|
| Transfer-switch ready | Yes |
| CO safety shutoff | Yes |
|---|
Checked 29 October 2026. Sources: firmanpowerequipment.com.