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- Generac #8151 iQ3600DF
- Genmax GM1200i
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 | Generac #8151 iQ3600DF | Genmax GM1200i |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Gasoline |
| Inverter | Yes | Yes |
| Parallel capable | Yes | Yes |
| RV ready | No | No |
| Running watts | Winner: Winner: 2800 W | 1000 W |
| Starting watts | Winner: Winner: 3600 W | 1200 W |
| Noise (lower limit) | 0 dB | Winner: Winner: 58 dB |
| Weight | 107 lbs | Winner: Winner: 25.3 lbs |
| Run time @50% load | Winner: Winner: 13 h | 6.5 h |
| Run time @25% load | Not available | 10 h |
| Fuel tank | 3.17 gal | 0.7 gal |
| Fuel gauge | Yes | No |
| Approx. dimensions (L × W × H) | 24.6 x 20.3 x 22.5 | 16.5 x 9.5 x 15.7 |
| Electrical | ||
| Voltage (AC) | 120 | 120V 60 Hz |
| Voltage (DC) | 5 | 5V |
| GFCI outlets | Yes | No |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | <3% % | <1.2% % |
| Engine | ||
| Engine | 212 cc OHV 4-stroke | 57 cc Dinking OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric | Recoil |
| Warranty | ||
| Warranty | 3 years | 1 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 2800 W | 1000 W |
| Starting watts | 3600 W | 1200 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 | 13 h | 6.5 h |
| Run time @25% load | Not available | 10 h |
| Propane | Not available | Not available |
| Running watts | 2500 W | Not available |
| Starting watts | 3200 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 | 16 h | Not available |
| Run time @25% load | Not available | Not available |
| 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 | Not available | 768494055271 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 2800 | 1000 |
| Running Watts (Propane) | 2500 | Not available |
| Starting Watts (Gasoline) | 3600 | 1200 |
| Starting Watts (Propane) | 3200 | Not available |
| Runtime @ 50% Load (Gasoline) | 13 | 6.5 |
| Runtime @ 50% Load (Propane) | 16 | Not available |
| Runtime @ 25% Load (Gasoline) | Not available | 10 |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R) GFCI1x 120V 30A (L5-30R) | 1x Duplex 120V 20A (5-20R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | 212 cc OHV 4-stroke | Not available |
| Engine Displacement | 212 | 57 |
| Engine Oil Type | 10W-30 | 10W-30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | Not available | 10 |
| Runtime @ 50% Load (Gasoline) | 13 | 6.5 |
| Runtime @ 50% Load (Propane) | 16 | Not available |
| Controls & display | ||
| Display Type | Digital | Not available |
| 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 | ||
| Starting Components | Recoil, Electric | Not available |
| Fuel Connection Components | Not available | Funnel, tool kit, RV adapter, and parallel cables |
| Included Accessories | Oil, funnel, tool kit, propane hose, and battery | Funnel, tool kit, RV adapter, and parallel cables |
| Additional specs | ||
| Summary | The Generac iQ3600DF is a 2,800-watt dual-fuel inverter generator that handles mid-range loads like essential home circuits during outages, multiple appliances at a campsite, or a mix of power tools on a job site. Gasoline delivers 2,800 running watts with 3,600 starting watts; propane runs at 2,500 watts with 3,200 starting watts. The dual-fuel design lets users choose based on fuel availability and storage preferences. Inverter technology keeps THD below 3 percent, protecting laptops and TVs from voltage spikes. Electric start with an included battery eliminates pull-cord friction. The 107-pound weight and compact footprint make it semi-portable but manageable for truck beds and garage storage. | The Genmax GM1200i is a 1000-watt gasoline inverter generator built for portability and quiet operation. At 25.3 lbs, it moves easily between job sites, campsites, and storage. The 1200-watt surge capacity handles startup demands for small appliances, power tools, and sensitive electronics. |
- Most PowerfulGenerac #8151 iQ3600DF2800W running
- QuietestGenmax GM1200i58 dB
- Longest RuntimeGenerac #8151 iQ3600DF13h at 50% load
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Generac #8151 iQ3600DF
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