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| Specification | A-iPower GXS8200D | Firman WT05571 |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Tri-Fuel |
| Inverter | No | Yes |
| Parallel capable | No | Yes |
| RV ready | No | Yes |
| Running watts | Winner: Winner: 6500 W | 5500 W |
| Starting watts | Winner: Winner: 8200 W | 6850 W |
| Noise (lower limit) | 68 dB | Winner: Winner: 67 dB |
| Weight | 143.7 lbs | Winner: Winner: 131.4 lbs |
| Run time @50% load | Not available | Not available |
| Run time @25% load | Not available | Winner: Winner: 14.5 h |
| Fuel tank | 6.3 gal | 5.3 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 26 x 25 x 23.7 | 27.6 x 21.3 x 22.6 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120/240 |
| Voltage (DC) | 5 | 12 |
| GFCI outlets | Yes | Yes |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | 23 % | 3 % |
| Engine | ||
| Engine | 322 cc OHV 4-stroke, cast iron sleeve | 322 cc OHV 4-stroke, cast iron sleeve. |
| Alternator | Not available | Not available |
| Starting system | Recoil | Recoil, Electric |
| Warranty | ||
| Warranty | 3 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 6500 W | 5500 W |
| Starting watts | 8200 W | 6850 W |
| Running amps (120V) | Not available | Not available |
| Running amps (240V) | Not available | Not available |
| Peak amps (120V) | Not available | Not available |
| Peak amps (240V) | Not available | Not available |
| Run time @50% load | 17 h | Not available |
| Run time @25% load | 17 h | 14.5 h |
| Propane | Not available | Not available |
| Running watts | 5900 W | 5000 W |
| Starting watts | 7400 W | 6250 W |
| Running amps (120V) | Not available | Not available |
| Running amps (240V) | Not available | Not available |
| Peak amps (120V) | Not available | Not available |
| Peak amps (240V) | Not available | Not available |
| Run time @50% load | Not available | Not available |
| Run time @25% load | 9 h | 9.5 h |
| Natural gas | Not available | Not available |
| Running watts | Not available | 4500 W |
| Starting watts | Not available | 5500 W |
| Running amps (120V) | Not available | Not available |
| Running amps (240V) | Not available | Not available |
| Peak amps (120V) | Not available | Not available |
| Peak amps (240V) | Not available | Not available |
| Run time @50% load | Not available | Not available |
| Run time @25% load | Not available | Not available |
| Other | ||
| Data center | Digital data center | Not available |
| Indicators | true | Not available |
| Compliance | EPA, ANSI/PGMA G300-2023 | EPA, ANSI/PGMA G300-2023 |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | true | Bonded to frame |
| UPC | 850055834682 | 840876155714 |
| Core / High-priority specs | ||
| Generator Type | Generator | Not available |
| Running Watts (Gasoline) | 6500 | 5500 |
| Running Watts (Propane) | 5900 | 5000 |
| Running Watts (Natural Gas) | Not available | 4500 |
| Starting Watts (Gasoline) | 8200 | 6850 |
| Starting Watts (Propane) | 7400 | 6250 |
| Starting Watts (Natural Gas) | Not available | 5500 |
| Rated Watts (Gasoline) | 6500 | Not available |
| Rated Watts (Propane) | 5900 | Not available |
| Peak Watts (Gasoline) | 8200 | Not available |
| Peak Watts (Propane) | 7400 | Not available |
| Runtime @ 50% Load (Gasoline) | 17 | Not available |
| Runtime @ 25% Load (Gasoline) | 17 | 14.5 |
| Runtime @ 25% Load (Propane) | 9 | 9.5 |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R) GFCI; 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R) | 1x Duplex 120V 20A (5-20R) GFCI; 1x 120V 30A (TT-30R); 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke, Cast iron sleeve | OHV 4-stroke |
| Engine Displacement | 322 | 322 |
| Cylinder Sleeve | Cast iron sleeve | cast iron sleeve |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 17 | 14.5 |
| Runtime @ 50% Load (Gasoline) | 17 | Not available |
| Controls & display | ||
| Display Type | Digital data center | Not available |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Low oil and overload protection, CO monitoring |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Mobility Components | Yes | Not available |
| Starting Components | Not available | Oil, funnel, tool kit, propane hose, and battery |
| Included Accessories | Oil, funnel, tool kit, propane hose, and wheel kit | Oil, funnel, tool kit, propane hose, and battery |
| Warranty & identification | ||
| Residential Warranty | 3 | Not available |
| Commercial Warranty | 3 | 3 |
| Part Number | GXS8200D | Not available |
| Additional specs | ||
| Summary | The A-iPower GXS8200D is a 6,500-watt dual-fuel generator built for users who need flexible fuel options and extended runtime. On gasoline, it delivers 8,200 starting watts and 6,500 running watts. On propane, it steps down to 7,400 starting watts and 5,900 running watts. This power level handles most household circuits, job site tools, and RV systems simultaneously. The dual-fuel design means you can switch between gasoline and propane depending on what you have on hand and which fuel offers better economics for your situation.
The 6.3-gallon tank runs for 17 hours at 25 percent load on gasoline, which translates to weeks of occasional use before refueling becomes a concern. At 50 percent load, the runtime extends even further on propane. The 322cc OHV 4-stroke engine with cast iron sleeve is built for durability in outdoor conditions. This is a workhorse for homeowners, contractors, and RV owners who value fuel flexibility over absolute portability. | The Firman WT05571 is a 5,500-watt tri-fuel generator that runs on gasoline, propane, or natural gas. On gasoline, it delivers 6,850 starting watts and 5,500 running watts, enough to power a full home electrical panel during an outage or run multiple job site tools simultaneously. On propane, output drops to 6,250 starting and 5,000 running watts. On natural gas, it falls to 5,500 starting and 4,500 running watts. This fuel flexibility means users can switch between sources based on availability, cost, or storage preference without buying multiple generators.
The tri-fuel capability makes this unit valuable for homeowners in regions with natural gas infrastructure, RV owners who can refill propane at any campground, and contractors who need to adapt to job site fuel availability. The 3 percent THD rating protects laptops, televisions, and other sensitive electronics from voltage spikes that damage circuits. At 67 decibels, the noise level sits between a typical conversation and heavy traffic, making it suitable for residential neighborhoods but audible enough that neighbors will know it is running. |