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| Specification | Powerhorse 2500i | Yamaha EF5500D |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | Yes | No |
| Parallel capable | Yes | No |
| RV ready | No | No |
| Running watts | 1800 W | Winner: Winner: 4500 W |
| Starting watts | 2500 W | Winner: Winner: 5500 W |
| Noise (lower limit) | Winner: Winner: 62 dB | 74.1 dB |
| Weight | Winner: Winner: 48.3 lbs | 216.1 lbs |
| Run time @50% load | 9.5 h | Winner: Winner: 13.5 h |
| Run time @25% load | 10.5 h | Not available |
| Fuel tank | 1.2 gal | 6.9 gal |
| Fuel gauge | No | Yes |
| Approx. dimensions (L × W × H) | 20.4 x 12.5 x 18.3 | 29.1 x 29 x 31.5 in |
| Electrical | ||
| Voltage (AC) | 120 | 120/240V 60 Hz |
| Voltage (DC) | Not available | Not available |
| GFCI outlets | No | Yes |
| Covered outlets | Yes | No |
| Automatic Voltage Regulation | Yes | Yes |
| THD | 3 % | Not available |
| Engine | ||
| Engine | 80 cc OHV 4-stroke | Yamaha MZ360 OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil | Recoil |
| Warranty | ||
| Warranty | 2 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | Not available | 4500 W |
| Starting watts | 2500 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 | 9.5 h | 13.5 h |
| Run time @25% load | 10.5 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 | Floating | true |
| UPC | 840321763969 | Not available |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | Not available | 4500 |
| Starting Watts (Gasoline) | 2500 | 5500 |
| Runtime @ 50% Load (Gasoline) | 9.5 | 13.5 |
| Runtime @ 25% Load (Gasoline) | 10.5 | Not available |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R) | 2x Duplex 120V 20A (5-20R) GFCI; 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | 80 cc OHV 4-stroke | OHV 4-stroke |
| Engine Displacement | 80 | 358 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 10.5 | Not available |
| Runtime @ 50% Load (Gasoline) | 9.5 | 13.5 |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection, CO monitoring | Not available |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Mobility Components | Not available | Yes |
| Included Accessories | Funnel and tool kit | Tool kit and wheel kit |
| Warranty & identification | ||
| Commercial Warranty | 2 | Not available |
| Part Number | Not available | EF55DZ1 |
| Additional specs | ||
| Summary | The Powerhorse 2500i is a portable inverter generator delivering 2,500 surge watts and 1,800 rated watts, featuring a quiet 52dB operation, CO shutdown function, and parallel-ready design for increased power needs. | The Yamaha EF5500D is a 5500-watt generator designed for emergency backup, recreational use, and DIY projects. It features a 358cc OHV engine, dual voltage output, and offers up to 9 hours of continuous operation at rated load. |
