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.
- Genmax GM2200i
- NorthStar c8000s
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 | Genmax GM2200i | NorthStar c8000s |
|---|---|---|
| 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: 6600 W |
| Starting watts | 2200 W | Winner: Winner: 8000 W |
| Noise (lower limit) | Winner: Winner: 58 dB | 73 dB |
| Weight | Winner: Winner: 41.9 lbs | 280 lbs |
| Run time @50% load | 6 h | Winner: Winner: 10.6 h |
| Run time @25% load | 8 h | Not available |
| Fuel tank | 1 gal | 8 gal |
| Fuel gauge | No | Yes |
| Approx. dimensions (L × W × H) | 18.9 x 11.4 x 17.3 | 41 x 32 x 29 |
| Electrical | ||
| Voltage (AC) | 120 | 120/240 |
| Voltage (DC) | 5 | Not available |
| GFCI outlets | No | Yes |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | <3% % | < 5% % |
| Engine | ||
| Engine | 79.7 cc Dinking OHV 4-stroke | Honda GX390 OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil | Recoil, Electric |
| Warranty | ||
| Warranty | 1 years | 4 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 1800 W | 6600 W |
| Starting watts | 2200 W | 8000 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 | 6 h | 10.6 h |
| Run time @25% load | 8 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | false |
| Compliance | EPA, ANSI/PGMA G300-2023 | CARB, EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Not available | true |
| UPC | 738349925141 | 840321737618 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 1800 | 6600 |
| Starting Watts (Gasoline) | 2200 | 8000 |
| Runtime @ 50% Load (Gasoline) | 6 | 10.6 |
| Runtime @ 25% Load (Gasoline) | 8 | Not available |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R) | 3x 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 | Dinking OHV 4-stroke | OHV 4-stroke |
| Engine Displacement | 79.7 | 389 |
| Engine Oil Type | 10W-30 | Not available |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 8 | Not available |
| Runtime @ 50% Load (Gasoline) | 6 | 10.6 |
| 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 | Yes |
| Included equipment | ||
| Included Accessories | Funnel and tool kit | Funnel, Battery, and Wheel Kit |
| Additional specs | ||
| Summary | The GENMAX GM2200i is a 2200-watt gasoline inverter generator featuring a 79.7cc engine, CO detection, and parallel capability, designed for quiet and efficient power supply. | The NorthStar c8000s is a commercial-grade portable generator designed for demanding job sites, featuring a Honda GX390 OHV engine and Quiet Armor Technology for reduced noise. |
- Most PowerfulNorthStar c8000s6600W running
- QuietestGenmax GM2200i58 dB
- Longest RuntimeNorthStar c8000s10.6h at 50% load
Where to buy
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Genmax GM2200i
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NorthStar c8000s
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