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- DuroMax XP5500HX
- Generac #7678 GP3600
Quick charts
Each chart uses its own Y-axis scale (so numbers are comparable within a chart).
Running watts
W
Starting watts
W
Noise
dB
Runtime @50%
h
Running watts by fuel
Shows how output changes across gasoline/propane/natural gas (when available).
| Specification | DuroMax XP5500HX | Generac #7678 GP3600 |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Gasoline |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | No | No |
| Running watts | Winner: Winner: 4500 W | 3600 W |
| Starting watts | Winner: Winner: 5500 W | 4500 W |
| Noise (lower limit) | Winner: Winner: 69 dB | 0 dB |
| Weight | 128 lbs | Winner: Winner: 105 lbs |
| Run time @50% load | 9 h | Winner: Winner: 9.3 h |
| Run time @25% load | 19 h | Not available |
| Fuel tank | 4 gal | 3.7 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 23 x 25 x 22 | 24 x 22.5 x 21.3 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120 |
| Voltage (DC) | 5 | Not available |
| GFCI outlets | Yes | No |
| Covered outlets | No | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Not available | Not available |
| Engine | ||
| Engine | 210 cc OHV 4-stroke, cast iron sleeve | Generac OHV 4-stroke 212 |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric | Recoil |
| Warranty | ||
| Warranty | 5 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 4500 W | 3600 W |
| Starting watts | 5500 W | 4500 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 h | 9.3 h |
| Run time @25% load | 19 h | Not available |
| Propane | Not available | Not available |
| Running watts | 4275 W | Not available |
| Starting watts | 5225 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 | 8 h | Not available |
| Run time @25% load | 15 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | false |
| Compliance | CARB, EPA | CARB |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Not available | Not available |
| UPC | 811640016203 | 696471074581 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 4500 | 3600 |
| Running Watts (Propane) | 4275 | Not available |
| Starting Watts (Gasoline) | 5500 | 4500 |
| Starting Watts (Propane) | 5225 | Not available |
| Runtime @ 50% Load (Gasoline) | 9 | 9.3 |
| Runtime @ 50% Load (Propane) | 8 | Not available |
| Runtime @ 25% Load (Gasoline) | 19 | Not available |
| Runtime @ 25% Load (Propane) | 15 | Not available |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R) 1x 120/240V 30A (L14-30R) | 2x Duplex 120V 20A (5-20R) 1x 120V 30A (L5-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | 210 cc OHV 4-stroke, cast iron sleeve | OHV 4-stroke |
| Engine Displacement | 210 | 212 |
| Cylinder Sleeve | cast iron sleeve | Not available |
| Alternator Winding Material | Copper windings | Not available |
| Engine Oil Type | 10W-30 | 10W-30 / SAE 30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 19 | Not available |
| Runtime @ 50% Load (Gasoline) | 9 | 9.3 |
| Runtime @ 50% Load (Propane) | 8 | Not available |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection, CO monitoring | Low oil and overload protection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | No |
| Included equipment | ||
| Mobility Components | Not available | Yes |
| Starting Components | Not available | Oil, funnel, tool kit, and wheel kit |
| Included Accessories | Funnel, tool kit, propane hose, battery, and wheel kit | Oil, funnel, tool kit, and wheel kit |
| Warranty & identification | ||
| Commercial Warranty | 5 | Not available |
| Part Number | Not available | 7678 |
| Additional specs | ||
| Summary | The DuroMax XP5500HX is a 4,500-watt dual-fuel generator built for homeowners, job sites, and outdoor events. Running on either gasoline or propane, it delivers 5,500 peak watts at startup, enough to power refrigerators, air conditioning units, power tools, and multiple devices simultaneously. The dual-fuel design eliminates fuel sourcing constraints. At 25% load on gasoline, the unit runs for 19 hours before refueling, stretching a single tank across an entire workday or overnight camping trip. This runtime advantage makes it practical for extended outages or remote projects where frequent refueling would interrupt operations. | The Generac GP3600 (#7678) is a 3600-watt gasoline generator built for homeowners and job sites needing reliable backup or portable power. Its 4500-watt peak capacity handles starting surges for tools and appliances, while the 3.7-gallon fuel tank delivers 9.3 hours of runtime at half load. Automatic voltage regulation protects sensitive electronics, and a three-year warranty covers ownership support. |
- Most PowerfulDuroMax XP5500HX4500W running
- QuietestDuroMax XP5500HX69 dB
- Longest RuntimeGenerac #7678 GP36009.3h at 50% load
Where to buy
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DuroMax XP5500HX
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Generac #7678 GP3600
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