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| Specification | Firman H03655 | Mi-T-M GEN-2500-IMM1 |
|---|---|---|
| General | ||
| Product type | Generator | Not available |
| Fuel | Dual-Fuel | Gasoline |
| Inverter | No | Yes |
| Parallel capable | No | Yes |
| RV ready | Yes | No |
| Running watts | Winner: Winner: 3650 W | 2300 W |
| Starting watts | Winner: Winner: 4550 W | 2500 W |
| Noise (lower limit) | Winner: Winner: 67 dB | Winner: Winner: 67 dB |
| Weight | 112 lbs | Winner: Winner: 57 lbs |
| Run time @50% load | Winner: Winner: 14 h | 5 h |
| Run time @25% load | Not available | Not available |
| Fuel tank | 5 gal | 1 gal |
| Fuel gauge | Yes | No |
| Approx. dimensions (L × W × H) | 25.7 x 21.8 x 21.6 | 21.50 x 13.40 x 19.30 |
| Electrical | ||
| Voltage (AC) | 120V 60 Hz | 120 |
| Voltage (DC) | Not available | 12 |
| GFCI outlets | No | Yes |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | No |
| THD | 25 % | 3 % |
| Engine | ||
| Engine | 208 cc OHV 4-stroke, cast iron sleeve | Mi-T-M OHV |
| Alternator | Not available | Not available |
| Starting system | Recoil | Not available |
| Warranty | ||
| Warranty | 3 years | 1 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 3650 W | 2300 W |
| Starting watts | 4550 W | 2500 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 | 14 h | 5 h |
| Run time @25% load | Not available | Not available |
| Propane | Not available | Not available |
| Running watts | 3300 W | Not available |
| Starting watts | 4100 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 | Not available | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | false | true |
| Compliance | EPA, ANSI/PGMA G300-2023 | CARB Compliant |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Floating | Not available |
| UPC | 840876136553 | Not available |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 3650 | 2300 |
| Running Watts (Propane) | 3300 | Not available |
| Starting Watts (Gasoline) | 4550 | 2500 |
| Starting Watts (Propane) | 4100 | Not available |
| Runtime @ 50% Load (Gasoline) | 14 | 5 |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R); 1x 120V 30A (TT-30R) | 120V 20A GFCI Duplex |
| Electrical & power | ||
| Frequency | 60 | Not available |
| Engine & construction | ||
| Engine Type | 208 cc OHV 4-stroke, cast iron sleeve | Not available |
| Engine Displacement | 208 | 120 |
| Cylinder Sleeve | cast iron sleeve | Not available |
| Alternator Winding Material | Not available | Copper |
| Runtime & fuel system | ||
| Runtime @ 50% Load (Gasoline) | 14 | 5 |
| Controls & display | ||
| Idle Control System | Not available | Idle control |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Not available |
| Low Oil Protection | Yes | No |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Starting Components | Oil, funnel, tool kit, propane hose, and wheel kit | Not available |
| Included Accessories | Oil, funnel, tool kit, propane hose, and wheel kit | Not available |
| Warranty & identification | ||
| Residential Warranty | 3 | 1 |
| Commercial Warranty | 3 | Not available |
| Part Number | Not available | GEN-2500-IMM1 |
| Additional specs | ||
| Summary | The Firman H03655 is a 3,650-watt dual-fuel generator built around a 208 cc OHV 4-stroke engine with a cast iron sleeve. Running on gasoline, it delivers 4,550 starting watts and 3,650 running watts. Switch to propane and output drops to 4,100 starting watts and 3,300 running watts. This power level runs a refrigerator, microwave, window air conditioner, or multiple power tools simultaneously. The dual-fuel flexibility means you can operate on whichever fuel is available, a practical advantage during extended outages or when propane storage is more convenient than gasoline.
At 67 dB at quarter load, the H03655 operates quietly enough for residential neighborhoods without disturbing neighbors. The 5-gallon tank delivers 14 hours of runtime at 50 percent load on gasoline, translating to roughly one full day of moderate use before refueling. The RV-ready configuration and included wheel kit position this unit as a go-anywhere power source for camping, job sites, and home backup scenarios. | The Mi-T-M GEN-2500-IMM1 is a 2300-watt gasoline inverter generator built for users who need portable backup power without sacrificing clean output. At 57 pounds, this unit bridges the gap between true portability and enough wattage to run multiple devices simultaneously. It can power essential appliances, power tools, and sensitive electronics like laptops during camping trips, tailgating events, or residential outages. The inverter technology keeps total harmonic distortion at 3 percent, which means laptops, TVs, and phone chargers stay protected from voltage spikes. Because the fuel tank holds only 1 gallon, refueling becomes part of the operating rhythm rather than a weekend-long concern. |
