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 GM2800iAE
- Westinghouse WH3700iXLTc
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 GM2800iAE | Westinghouse WH3700iXLTc |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | Yes | Yes |
| Parallel capable | Yes | Yes |
| RV ready | Yes | No |
| Running watts | 2500 W | Winner: Winner: 3000 W |
| Starting watts | 2800 W | Winner: Winner: 3700 W |
| Noise (lower limit) | 62 dB | Winner: Winner: 58 dB |
| Weight | Winner: Winner: 54 lbs | 70.5 lbs |
| Run time @50% load | Not available | Not available |
| Run time @25% load | Winner: Winner: 10 h | 6 h |
| Fuel tank | 1.7 gal | 1.3 gal |
| Fuel gauge | Yes | No |
| Approx. dimensions (L × W × H) | 20.7 x 12.2 x 19.7 | 23.9 x 13.3 x 19.3 |
| Electrical | ||
| Voltage (AC) | 120 | 120 |
| Voltage (DC) | 5 | 5 |
| GFCI outlets | No | No |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | 3 % | ≤ 3% % |
| Engine | ||
| Engine | 145 cc Dinking OHV 4-stroke | 150 cc OHV 4-stroke |
| 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 | 2500 W | 3000 W |
| Starting watts | 2800 W | 3700 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 | 10 h | 6 h |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | EPA, ANSI/PGMA G300-2023 | CARB, EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | true | Floating |
| UPC | Not available | 850011336595 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 2500 | 3000 |
| Starting Watts (Gasoline) | 2800 | 3700 |
| Runtime @ 25% Load (Gasoline) | 10 | 6 |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R) 1x 120V 30A (TT-30R) | 1x Duplex 120V 20A (5-20R) 1x 120V 30A (L5-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | Dinking OHV 4-stroke | OHV 4-stroke |
| Engine Displacement | 145 | 150 |
| Engine Oil Type | 10W-30 | 10W-30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 10 | 6 |
| 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 | Not available | Oil, funnel, tool kit, RV adapter, and parallel cables |
| Additional specs | ||
| Summary | The Genmax GM2800iAE is a 2800-watt gasoline inverter generator with CO Detect, suitable for emergency home power, outdoor activities, and RV use. Its inverter technology ensures clean power for sensitive electronics and it features multiple starting options for convenience. | The Westinghouse WH3700iXLTc is a portable inverter generator designed for recreational activities and home backup, offering 3700 peak watts and 3000 running watts with enhanced fuel efficiency and quiet operation. |
- Most PowerfulWestinghouse WH3700iXLTc3000W running
- QuietestWestinghouse WH3700iXLTc58 dB
- Longest Runtimeh at 50% load
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Genmax GM2800iAE
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Westinghouse WH3700iXLTc
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