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| Specification | Genmax GM6250iET | Honda EM6500SX |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Tri-Fuel | Gasoline |
| Inverter | Yes | No |
| Parallel capable | Yes | No |
| RV ready | Yes | No |
| Running watts | Winner: Winner: 5500 W | Winner: Winner: 5500 W |
| Starting watts | 6250 W | Winner: Winner: 6500 W |
| Noise (lower limit) | 66 dB | Winner: Winner: 64 dB |
| Weight | Winner: Winner: 102.6 lbs | 231.7 lbs |
| Run time @50% load | Not available | Winner: Winner: 9.8 h |
| Run time @25% load | 10 h | Not available |
| Fuel tank | 3 gal | 6.2 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 22.8 x 17.8 x 19.7 | 41.4 x 27.8 x 28.3 |
| 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 | 3 % | Not available |
| Engine | ||
| Engine | 224 cc OHV 4-stroke | Honda iGX390 OHV 4-stroke, cast iron sleeve |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric, Remote | Recoil, Electric, Remote |
| Warranty | ||
| Warranty | 3 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 5500 W | 5500 W |
| Starting watts | 6250 W | 6500 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 | 9.8 h |
| Run time @25% load | 10 h | Not available |
| Natural gas | Not available | Not available |
| Running watts | 4500 W | Not available |
| Starting watts | 5000 W | Not available |
| 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 |
| Propane | Not available | Not available |
| Running watts | 5000 W | Not available |
| Starting watts | 5500 W | Not available |
| 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 | 11 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | false |
| Compliance | EPA, ANSI/PGMA G300-2023 | EPA, ANSI/PGMA G300-2023 |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | true | Floating |
| UPC | 784482491296 | 786102007429 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 5500 | 5500 |
| Running Watts (Propane) | 5000 | Not available |
| Running Watts (Natural Gas) | 4500 | Not available |
| Starting Watts (Gasoline) | 6250 | 6500 |
| Starting Watts (Propane) | 5500 | Not available |
| Starting Watts (Natural Gas) | 5000 | Not available |
| Runtime @ 50% Load (Gasoline) | Not available | 9.8 |
| Runtime @ 25% Load (Gasoline) | 10 | Not available |
| Runtime @ 25% Load (Propane) | 11 | Not available |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R) GFCI; 1x 120V 30A (L5-30R); 1x 120/240V 50A (14-50R) | AC outlets2x Duplex 120V 20A (5-20R) GFCI1x 120V 30A (L5-30R)1x 120/240V 30A (L14-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | 224 cc OHV 4-stroke | Honda iGX390 OHV 4-stroke, cast iron sleeve |
| Engine Displacement | 224 | 389 |
| Cylinder Sleeve | Not available | Cast iron sleeve |
| Engine Oil Type | Not available | 10W-30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 10 | Not available |
| Runtime @ 50% Load (Gasoline) | Not available | 9.8 |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection, CO monitoring | Low oil and overload protection |
| Low Oil Protection | No | Yes |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Starting Components | Recoil, Electric, Remote | Recoil, Electric, Remote |
| Included Accessories | Funnel, tool kit, key fob, battery charger, cover, and battery | Battery and wheel kit |
| Warranty & identification | ||
| Commercial Warranty | 3 | 3 |
| Part Number | Not available | EM6500SXK2AN |
| Additional specs | ||
| Summary | The Genmax GM6250iET is a 5,500-watt tri-fuel inverter generator built for users who need substantial backup power without sacrificing electronics protection. Its 3% THD rating means it can safely power laptops, refrigerators, and air conditioning units simultaneously, while the tri-fuel capability lets owners switch between gasoline, propane, and natural gas depending on availability. This combination of clean power and fuel flexibility makes it a practical choice for RV owners, homeowners facing extended outages, and job sites where power quality matters as much as raw wattage. | The Honda EM6500SX is a 6500-watt generator equipped with an electric start, Bluetooth capability, and CO-MINDER for advanced carbon monoxide detection. It offers a long run time of up to 9.8 hours and can power a variety of household appliances. |
