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
- Yamaha EF4500iSE
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 | Yamaha EF4500iSE |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Gasoline |
| Inverter | Yes | Yes |
| Parallel capable | Yes | No |
| RV ready | No | No |
| Running watts | 3200 W | Winner: Winner: 4000 W |
| Starting watts | 3500 W | Winner: Winner: 4500 W |
| Noise (lower limit) | 62 dB | Winner: Winner: 58 dB |
| Weight | Winner: Winner: 56.2 lbs | 209 lbs |
| Run time @50% load | Not available | Not available |
| Run time @25% load | 9 h | Winner: Winner: 15.2 h |
| Fuel tank | 1.7 gal | 4.5 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 20.9 x 12.2 x 19.7 | 30.7 x 24.3 x 27.2 |
| Electrical | ||
| Voltage (AC) | 120 | 120 |
| Voltage (DC) | 5 | Not available |
| GFCI outlets | No | No |
| Covered outlets | Yes | No |
| Automatic Voltage Regulation | Yes | Yes |
| THD | ≤3% % | 3 % |
| Engine | ||
| Engine | 145 cc OHV 4-stroke | Yamaha MZ360 OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric, Remote | Electric |
| Warranty | ||
| Warranty | 1 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 3200 W | 4000 W |
| Starting watts | 3500 W | 4500 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 | 15.2 h |
| 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 | true |
| Compliance | EPA, ANSI/PGMA G300-2023 | CARB, EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | true | Floating |
| UPC | 713424639021 | 765053833196 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 3200 | 4000 |
| Running Watts (Propane) | 2800 | Not available |
| Starting Watts (Gasoline) | 3500 | 4500 |
| Starting Watts (Propane) | 3100 | Not available |
| Runtime @ 25% Load (Gasoline) | 8 | 15.2 |
| Runtime @ 25% Load (Propane) | 16 | Not available |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R) 1x 120V 30A (L5-30R) | 1x Duplex 120V 20A (5-20R)1x 120V 30A (L5-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | OHV 4-stroke |
| Engine Displacement | 145 | 357 |
| Engine Oil Type | 10W-30 | Not available |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 8 | 15.2 |
| Safety & compliance | ||
| Overload Protection System | Not available | Low oil and overload protection, CO monitoring |
| 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 | Battery |
| Warranty & identification | ||
| Part Number | Not available | EF45ISEZ |
| 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 Yamaha EF4500iSE is a 4500-watt inverter generator designed for maximum efficiency and minimal noise, suitable for emergency backup, recreational use, and DIY projects. |
- Most PowerfulYamaha EF4500iSE4000W running
- QuietestYamaha EF4500iSE58 dB
- Longest Runtimeh at 50% load
Where to buy
Prices can change. We update these automatically.
Genmax GM3500iAED
Store links
No links yet.
Yamaha EF4500iSE
Store links
No links yet.
Disclosure: Some links may be affiliate links. Specs and comparisons are never hidden.