Champion 5500-Watt Dual Fuel
5500 W, dual-fuel
Firman W05583
Generator. Specs from the manufacturer page (checked ).
The Firman W05583 is an inverter generator with a 322cc engine, rated for 5500 running watts and 6850 starting watts. It provides 120/240 AC volts, a 5.3-gallon tank, and up to 10 hours of run time at 25% load. It weighs 129.2 lbs and has a 3-year warranty.
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Running
5500W
Peak / surge
6850W
Noise
67dB
Weight
58.6kg
Warranty
3yr
Key features
- Electric start, recoil start, and remote start
- 6850 starting watts and 5500 running watts
- Outlets: one 5-20R 120V 20A duplex GFCI, one TT-30R 120V 30A twistlock, one L14-30R 120V/240V 30A twistlock (22.9A/240V/5500W), and one 14-50R 120V/240V 50A (22.9A/240V/5300W), all with covered outlets
- USB-C port (60W) and 12V DC power port/plug (100W)
- 5.3-gallon tank with up to 10 hours of run time at 25% load
- Eco Mode and 67dB at 25% load
- Parallel operation, low oil shutoff, CO alert technology, and multi-meter
- Cast iron sleeve
Specifications
| Running watts | 5500 W |
|---|---|
| Peak / surge | 6850 W |
| Tank | 20.1 L (5.3 gal) |
| Noise | 67 dB |
| Weight | 58.6 kg (129.2 lb) |
| Warranty | 3 years |
From the Firman page. Values the manufacturer does not publish are left out.
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Connection and wiring
Follow the diagrams in the Firman manual. Connecting to a home panel needs a transfer switch or interlock and a licensed electrician.
- Wiring diagram, manual page 3 →
- Wiring diagram, manual page 38 →
- Wiring diagram, manual page 39 →
- Wiring diagram, manual page 40 →
- Wiring diagram, manual page 41 →
Error codes and troubleshooting
We found no error-code table in this manual. Its troubleshooting section is the reference.
FAQ
Can the Firman W05583 start a sump pump or well pump?
Starting surge matters more than running watts: this unit is rated 6850 W peak. That covers a typical 1/2 HP sump pump (about 2150 W to start). Use the calculator with your exact pump.