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| Specification | Genmax GM3500iAED | Yamaha EF5500DE |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Gasoline |
| Inverter | Yes | No |
| Parallel capable | Yes | No |
| RV ready | No | No |
| Running watts | 3200 W | Winner: Winner: 4500 W |
| Starting watts | 3500 W | Winner: Winner: 5500 W |
| Noise (lower limit) | Winner: Winner: 62 dB | 74.1 dB |
| Weight | Winner: Winner: 56.2 lbs | 238.1 lbs |
| Run time @50% load | Not available | Winner: Winner: 13.5 h |
| Run time @25% load | 9 h | Not available |
| Fuel tank | 1.7 gal | 6.9 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 20.9 x 12.2 x 19.7 | 29.1 x 29 x 31.5 in |
| Electrical | ||
| Voltage (AC) | 120 | 120/240V 60 Hz |
| Voltage (DC) | 5 | Not available |
| GFCI outlets | No | Yes |
| Covered outlets | Yes | No |
| Automatic Voltage Regulation | Yes | Yes |
| THD | ≤3% % | Not available |
| Engine | ||
| Engine | 145 cc OHV 4-stroke | Yamaha MZ360 OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric, Remote | Recoil, Electric |
| Warranty | ||
| Warranty | 1 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 3200 W | 4500 W |
| Starting watts | 3500 W | 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 | 13.5 h |
| Run time @25% load | 8 h | Not available |
| Propane | Not available | Not available |
| Running watts | 2800 W | Not available |
| Starting watts | 3100 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 | 16 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | EPA, ANSI/PGMA G300-2023 | CARB, EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | true | true |
| UPC | 713424639021 | 765053823098 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 3200 | 4500 |
| Running Watts (Propane) | 2800 | Not available |
| Starting Watts (Gasoline) | 3500 | 5500 |
| Starting Watts (Propane) | 3100 | Not available |
| Runtime @ 50% Load (Gasoline) | Not available | 13.5 |
| Runtime @ 25% Load (Gasoline) | 8 | Not available |
| Runtime @ 25% Load (Propane) | 16 | Not available |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R) 1x 120V 30A (L5-30R) | 2x Duplex 120V 20A (5-20R) 1x 120V 30A (L5-30R)1x 120/240V 30A (L14-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | OHV 4-stroke |
| Engine Displacement | 145 | 358 |
| Engine Oil Type | 10W-30 | Not available |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 8 | Not available |
| Runtime @ 50% Load (Gasoline) | Not available | 13.5 |
| Controls & display | ||
| Display Type | Not available | Data center |
| Safety & compliance | ||
| Overload Protection System | Not available | Low oil and overload protection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Documentation | Not available | Data center |
| Included Accessories | Funnel, tool kit, key fob, propane hose, RV adapter, and battery | Tool kit, battery, and wheel kit |
| Warranty & identification | ||
| Part Number | Not available | EF55DEX |
| Additional specs | ||
| Summary | The Genmax GM3500iAED is a 3,200-watt dual-fuel inverter generator that runs on gasoline or propane. At 56.2 lbs, it handles essential household loads like refrigerators and small power tools while remaining portable enough for camping or job sites. The 62 dB noise level keeps it residential-friendly. | The Yamaha EF5500DE is a versatile dual 120/240 volt generator, ideal for emergency backup power for home, cottage, or business, as well as primary power on job sites. It features a 358cc OHV engine, electric start, and offers 5500 watts maximum AC output with outstanding fuel efficiency. |
