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 GM3500iAED
- Westinghouse iGen2800DFc
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 @25%
h
Running watts by fuel
Shows how output changes across gasoline/propane/natural gas (when available).
| Specification | Genmax GM3500iAED | Westinghouse iGen2800DFc |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Dual-Fuel |
| Inverter | Yes | Yes |
| Parallel capable | Yes | Yes |
| RV ready | No | Yes |
| Running watts | Winner: Winner: 3200 W | 2200 W |
| Starting watts | Winner: Winner: 3500 W | 2800 W |
| Noise (lower limit) | 62 dB | Winner: Winner: 52 dB |
| Weight | 56.2 lbs | Winner: Winner: 45.4 lbs |
| Run time @50% load | Not available | Not available |
| Run time @25% load | 9 h | Winner: Winner: 12 h |
| Fuel tank | 1.7 gal | 1.1 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 20.9 x 12.2 x 19.7 | 19.1 x 11.7 x 18 |
| Electrical | ||
| Voltage (AC) | 120 | 120 |
| Voltage (DC) | 5 | Not available |
| GFCI outlets | No | No |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | ≤3% % | <3% % |
| Engine | ||
| Engine | 145 cc OHV 4-stroke | 98 cc OHV 4-stroke, cast iron sleeve. |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric, Remote | Recoil |
| Warranty | ||
| Warranty | 1 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 3200 W | 2200 W |
| Starting watts | 3500 W | 2800 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 | Not available | Not available |
| Run time @25% load | 8 h | 12 h |
| Propane | Not available | Not available |
| Running watts | 2800 W | 1980 W |
| Starting watts | 3100 W | 2520 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 | Not available | Not available |
| Run time @25% load | 16 h | 38 h |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | EPA, ANSI/PGMA G300-2023 | EPA, ANSI/PGMA G300-2023 |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | true | Not available |
| UPC | 713424639021 | 850060639838 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 3200 | 2200 |
| Running Watts (Propane) | 2800 | 1980 |
| Starting Watts (Gasoline) | 3500 | 2800 |
| Starting Watts (Propane) | 3100 | 2520 |
| Runtime @ 25% Load (Gasoline) | 8 | 12 |
| Runtime @ 25% Load (Propane) | 16 | 38 |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R) 1x 120V 30A (L5-30R) | 1x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | 98 cc OHV 4-stroke, cast iron sleeve |
| Engine Displacement | 145 | 98 |
| Cylinder Sleeve | Not available | Cast iron sleeve |
| Alternator Winding Material | Not available | Copper |
| Engine Oil Type | 10W-30 | SAE 10W-30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 8 | 12 |
| Safety & compliance | ||
| Overload Protection System | Not available | Low oil and overload protection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Included Accessories | Funnel, tool kit, key fob, propane hose, RV adapter, and battery | Oil, funnel, tool kit, and propane hose |
| Warranty & identification | ||
| Residential Warranty | Not available | 3 |
| Commercial Warranty | Not available | 3 |
| Additional specs | ||
| Summary | The Genmax GM3500iAED is a 3,200-watt dual-fuel inverter generator that runs on gasoline or propane. At 56.2 lbs, it handles essential household loads like refrigerators and small power tools while remaining portable enough for camping or job sites. The 62 dB noise level keeps it residential-friendly. | The Westinghouse iGen2800DFc is a 2200-watt dual-fuel inverter generator that runs on gasoline or propane. Its lightweight 45.4-pound frame and 52 dBA noise level make it suitable for RV camping, backup power, and job sites where portability and quiet operation matter. |
- Most PowerfulGenmax GM3500iAED3200W running
- QuietestWestinghouse iGen2800DFc52 dB
- Longest Runtimeh at 50% load
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Genmax GM3500iAED
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Westinghouse iGen2800DFc
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