Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.
| Specification | DuroStar DS10000EH | Yamaha EF5500DE |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Gasoline |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | Yes | No |
| Running watts | Winner: Winner: 8000 W | 4500 W |
| Starting watts | Winner: Winner: 10000 W | 5500 W |
| Noise (lower limit) | Winner: Winner: 72 dB | 74.1 dB |
| Weight | Winner: Winner: 220 lbs | 238.1 lbs |
| Run time @50% load | 10 h | Winner: Winner: 13.5 h |
| Run time @25% load | 22 h | Not available |
| Fuel tank | 8.3 gal | 6.9 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 29 x 30 x 26 | 29.1 x 29 x 31.5 in |
| Electrical | ||
| Voltage (AC) | 120/240 | 120/240V 60 Hz |
| Voltage (DC) | 12 | Not available |
| GFCI outlets | Yes | Yes |
| Covered outlets | No | No |
| Automatic Voltage Regulation | Yes | Yes |
| THD | 12 % | Not available |
| Engine | ||
| Engine | 439 cc OHV 4-stroke, cast iron sleeve | Yamaha MZ360 OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric | Recoil, Electric |
| Warranty | ||
| Warranty | 3 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 8000 W | 4500 W |
| Starting watts | 10000 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 | 10 h | 13.5 h |
| Run time @25% load | 22 h | Not available |
| Propane | Not available | Not available |
| Running watts | 7600 W | Not available |
| Starting watts | 9500 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 | 4.5 h | Not available |
| Run time @25% load | 8.5 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | CARB, EPA | CARB, EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Not available | true |
| UPC | 811640014421 | 765053823098 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 8000 | 4500 |
| Running Watts (Propane) | 7600 | Not available |
| Starting Watts (Gasoline) | 10000 | 5500 |
| Starting Watts (Propane) | 9500 | Not available |
| Runtime @ 50% Load (Gasoline) | 10 | 13.5 |
| Runtime @ 50% Load (Propane) | 4.5 | Not available |
| Runtime @ 25% Load (Gasoline) | 22 | Not available |
| Runtime @ 25% Load (Propane) | 8.5 | Not available |
| AC Outlet Types | AC outlets1x Duplex 120V 20A (5-20R)1x 120V 30A (L5-30R)1x 120/240V 30A (L14-30R)1x 120/240V 50A (14-50R) | 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 | 439 cc OHV 4-stroke, cast iron sleeve | OHV 4-stroke |
| Engine Displacement | 439 | 358 |
| Cylinder Sleeve | Cast iron sleeve | Not available |
| Alternator Winding Material | Copper | Not available |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 22 | Not available |
| Runtime @ 50% Load (Gasoline) | 10 | 13.5 |
| Runtime @ 50% Load (Propane) | 4.5 | Not available |
| Controls & display | ||
| Display Type | Not available | Data center |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Low oil and overload protection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | No | Yes |
| Included equipment | ||
| Starting Components | Recoil, Electric | Not available |
| Documentation | Not available | Data center |
| Included Accessories | Funnel, tool kit, propane hose, battery charging cables, battery, and wheel kit | Tool kit, battery, and wheel kit |
| Warranty & identification | ||
| Commercial Warranty | 3 | Not available |
| Part Number | Not available | EF55DEX |
| Additional specs | ||
| Summary | The DuroStar DS10000EH is an 8,000-watt dual-fuel generator built on a 439 cc OHV 4-stroke engine with cast iron sleeve construction. At 8,000 running watts, this unit can power multiple household appliances simultaneously, job site tools, or serve as extended backup during outages. The dual-fuel design means users can run gasoline or propane depending on fuel availability and storage constraints, a significant advantage during supply disruptions.
Because the DS10000EH runs at 72 dB, placement matters. At 25 feet, the noise becomes manageable for residential use; closer proximity requires hearing protection or evening restrictions. The 8.3-gallon tank delivers 22 hours at 25% load on gasoline, making extended operations feasible without constant refueling. On propane at the same load, runtime drops to 8.5 hours due to lower energy density. This runtime flexibility shapes real-world deployment: gasoline for long-term backup, propane for shorter bursts or when storage space is limited. | 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. |