Compare Generators Side-by-Side
Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.
- DuroMax XP9500iH
- Firman H07552
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 XP9500iH | Firman H07552 |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Dual-Fuel |
| Inverter | Yes | No |
| Parallel capable | Yes | No |
| RV ready | Yes | Yes |
| Running watts | Winner: Winner: 7600 W | 7500 W |
| Starting watts | Winner: Winner: 9500 W | 9400 W |
| Noise (lower limit) | Winner: Winner: 61 dB | 74 dB |
| Weight | 216 lbs | Winner: Winner: 212 lbs |
| Run time @50% load | 11 h | Winner: Winner: 12 h |
| Run time @25% load | 21 h | 12 h |
| Fuel tank | 7.1 gal | 8 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 26.2 x 25 x 29.6 | 30.2 x 27.5 x 26.3 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120/240V 60 Hz |
| Voltage (DC) | Not available | Not available |
| GFCI outlets | Yes | Yes |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | 3 % | 25 % |
| Engine | ||
| Engine | 459 cc OHV 4-stroke, cast iron sleeve. | 439 cc Firman Max-Pro Series OHV 4-stroke, cast iron sleeve |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric, Remote | Recoil, Electric |
| Warranty | ||
| Warranty | 5 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | Not available | 7500 W |
| Starting watts | 9500 W | 9400 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 | 11 h | 12 h |
| Run time @25% load | 21 h | Not available |
| Propane | Not available | Not available |
| Running watts | 7200 W | 6750 W |
| Starting watts | 9025 W | 8450 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 | 5 h | 5 h |
| Run time @25% load | 9.5 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | false |
| Compliance | EPA | CARB, EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Not available | true |
| UPC | 811640017026 | 840876175521 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | Not available | 7500 |
| Running Watts (Propane) | 7200 | 6750 |
| Starting Watts (Gasoline) | 9500 | 9400 |
| Starting Watts (Propane) | 9025 | 8450 |
| Runtime @ 50% Load (Gasoline) | 11 | 12 |
| Runtime @ 50% Load (Propane) | 5 | 5 |
| Runtime @ 25% Load (Gasoline) | 21 | Not available |
| Runtime @ 25% Load (Propane) | 9.5 | Not available |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R) GFCI; 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R) | 1x Duplex 120V 20A (5-20R) GFCI; 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | 459 cc OHV 4-stroke, cast iron sleeve. | OHV 4-stroke, cast iron sleeve |
| Engine Displacement | 459 | 439 |
| Cylinder Sleeve | cast_iron_sleeve | cast iron sleeve |
| Alternator Winding Material | Copper | Not available |
| Engine Oil Type | 10W-30 | 10W-30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 21 | Not available |
| Runtime @ 50% Load (Gasoline) | 11 | 12 |
| Runtime @ 50% Load (Propane) | 5 | 5 |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Not available |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | No |
| Included equipment | ||
| Mobility Components | Not available | Yes |
| Included Accessories | Funnel, tool kit, key fob, battery charger, propane hose, and battery | Not available |
| Warranty & identification | ||
| Commercial Warranty | 5 | Not available |
| Additional specs | ||
| Summary | The DuroMax XP9500iH is a 7,600-watt dual-fuel inverter generator built for whole-home backup and job-site power. Running on either gasoline or propane, it delivers 9,500 starting watts to handle motor inrush demands from air conditioners, well pumps, and power tools. The inverter produces clean 3% THD power, meaning laptops, televisions, and medical equipment run safely without risk of voltage spikes. This is a stationary or semi-portable unit. At 216 pounds, it requires wheels or multiple people to move, making it suited for permanent installation or fixed-location backup rather than frequent relocation.
The fuel flexibility matters in extended outages. Gasoline runs 11 hours at half load before refueling, while propane stretches to 5 hours at the same draw. At quarter load, gasoline delivers 21 hours of runtime, propane 9.5 hours. For homeowners choosing between fuel types, gasoline offers longer intervals between refills, propane offers cleaner storage and no fuel degradation over months. | The Firman H07552 is a 7500-watt dual-fuel generator built for job sites, home backup, and extended outdoor use. On gasoline, it delivers 9400 starting watts and 7500 running watts. Switch to propane and output drops to 8450 starting watts and 6750 running watts, a trade-off that extends fuel flexibility but reduces peak capacity. The 439cc cast-iron-sleeve engine runs on either fuel, giving users the ability to source power based on availability and cost. With an 8-gallon tank, this generator runs 12 hours at 25% load on gasoline or 5 hours on propane, meaning refueling intervals depend heavily on fuel choice and load demand.
This wattage class powers most household circuits simultaneously. A 7500-watt generator can run a central air conditioning unit (3500 watts), a water heater (4000 watts), and lighting circuits without overload. For contractors, it handles multiple power tools, compressors, and site lighting. The dual-fuel option appeals to users who want propane backup when gasoline becomes scarce or expensive, though the runtime penalty on propane means job-site users will refuel more frequently. |
- Most PowerfulDuroMax XP9500iH7600W running
- QuietestDuroMax XP9500iH61 dB
- Longest RuntimeFirman H0755212h at 50% load
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DuroMax XP9500iH
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Firman H07552
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