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
- Predator 72899
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 | Predator 72899 |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Gasoline |
| Inverter | Yes | Yes |
| Parallel capable | Yes | No |
| RV ready | No | No |
| Running watts | Winner: Winner: 3200 W | 3000 W |
| Starting watts | Winner: Winner: 3500 W | Winner: Winner: 3500 W |
| Noise (lower limit) | 62 dB | Winner: Winner: 56 dB |
| Weight | Winner: Winner: 56.2 lbs | 102 lbs |
| Run time @50% load | Not available | Not available |
| Run time @25% load | 9 h | Winner: Winner: 11 h |
| Fuel tank | 1.7 gal | Not available |
| Fuel gauge | Yes | No |
| Approx. dimensions (L × W × H) | 20.9 x 12.2 x 19.7 | 22.75 x 17.3 x 20 |
| Electrical | ||
| Voltage (AC) | 120 | 120V |
| Voltage (DC) | 5 | Not available |
| GFCI outlets | No | No |
| Covered outlets | Yes | No |
| Automatic Voltage Regulation | Yes | No |
| THD | ≤3% % | Not available |
| Engine | ||
| Engine | 145 cc OHV 4-stroke | Not available |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric, Remote | Not available |
| Warranty | ||
| Warranty | 1 years | Not available |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 3200 W | Not available |
| Starting watts | 3500 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 | Not available | Not available |
| Run time @25% load | 8 h | Not available |
| Propane | Not available | Not available |
| Running watts | 2800 W | Not available |
| Starting watts | 3100 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 | Not available | Not available |
| Run time @25% load | 16 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | Not available |
| Compliance | EPA, ANSI/PGMA G300-2023 | Not available |
| Security | Not available | Not available |
| Spark arrestor | Yes | No |
| Neutral | true | Not available |
| UPC | 713424639021 | Not available |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 3200 | Not available |
| Running Watts (Propane) | 2800 | Not available |
| Starting Watts (Gasoline) | 3500 | Not available |
| Starting Watts (Propane) | 3100 | Not available |
| Runtime @ 25% Load (Gasoline) | 8 | Not available |
| Runtime @ 25% Load (Propane) | 16 | Not available |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R) 1x 120V 30A (L5-30R) | Not available |
| Electrical & power | ||
| Frequency | 60 | Not available |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | Not available |
| Engine Displacement | 145 | 212 |
| Engine Oil Type | 10W-30 | Not available |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 8 | Not available |
| Safety & compliance | ||
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | No |
| Included equipment | ||
| Included Accessories | Funnel, tool kit, key fob, propane hose, RV adapter, and battery | Not available |
| 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 Predator 72899 is a 3500 Watt Super Quiet Inverter Generator designed for efficient and quiet operation, suitable for various applications including RVs. |
- Most PowerfulGenmax GM3500iAED3200W running
- QuietestPredator 7289956 dB
- Longest Runtimeh at 50% load
Where to buy
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Genmax GM3500iAED
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Predator 72899
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