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| Specification | ECHO EG-3500 | Firman T04073 |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Tri-Fuel |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | No | No |
| Running watts | 2800 W | Winner: Winner: 4000 W |
| Starting watts | 3500 W | Winner: Winner: 5000 W |
| Noise (lower limit) | 72 dB | Winner: Winner: 67 dB |
| Weight | Winner: Winner: 110 lbs | 123.4 lbs |
| Run time @50% load | 10 h | Winner: Winner: 12 h |
| Run time @25% load | Not available | 14 h |
| Fuel tank | 4 gal | 5 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 25 x 24.5 x 21.5 | 29.8 x 27.5 x 26.1 |
| Electrical | ||
| Voltage (AC) | 120 | 120/240 |
| Voltage (DC) | Not available | Not available |
| GFCI outlets | Yes | Yes |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Not available | 11%-14% % |
| Engine | ||
| Engine | 212 cc OHV 4-stroke | 223 cc OHV 4-stroke, cast iron sleeve |
| Alternator | Not available | Not available |
| Starting system | Recoil | Recoil, Electric |
| Warranty | ||
| Warranty | 3 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 2800 W | 4000 W |
| Starting watts | 3500 W | 5000 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 | 10 h | 14 h |
| Run time @25% load | Not available | Not available |
| Natural gas | Not available | Not available |
| Running watts | Not available | 3200 W |
| Starting watts | Not available | 4000 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 | Not available | Not available |
| Propane | Not available | Not available |
| Running watts | Not available | 3600 W |
| Starting watts | Not available | 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 | 9 h |
| Run time @25% load | Not available | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | Not available | true |
| Compliance | CARB, EPA | CARB, EPA, ANSI/PGMA G300-2023 |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Bonded to frame | true |
| UPC | 743184017586 | 840876140734 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 2800 | 4000 |
| Running Watts (Propane) | Not available | 3600 |
| Running Watts (Natural Gas) | Not available | 3200 |
| Starting Watts (Gasoline) | 3500 | 5000 |
| Starting Watts (Propane) | Not available | 4500 |
| Starting Watts (Natural Gas) | Not available | 4000 |
| Runtime @ 50% Load (Gasoline) | 10 | 14 |
| Runtime @ 50% Load (Propane) | Not available | 9 |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R) GFCI; 1x 120V 30A (L5-30R) | 1x Duplex 120V 20A (5-20R) GFCI; 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | 223 cc OHV 4-stroke |
| Engine Displacement | 212 | 223 |
| Cylinder Sleeve | Not available | cast iron |
| Runtime & fuel system | ||
| Runtime @ 50% Load (Gasoline) | 10 | 14 |
| Runtime @ 50% Load (Propane) | Not available | 9 |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Low oil and overload protection, CO monitoring |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | No | Yes |
| Included equipment | ||
| Starting Components | Not available | Recoil, Electric |
| Included Accessories | Wheel kit | Oil, funnel, tool kit, propane hose, RV adapter, cover, battery, and wheel kit |
| Warranty & identification | ||
| Commercial Warranty | Not available | 3 |
| Additional specs | ||
| Summary | The ECHO EG-3500 is a 2,800-watt gasoline generator built around a 212 cc OHV 4-stroke engine. At this wattage, it handles essential household loads like refrigerators, sump pumps, and power tools, but cannot run a central air conditioner or multiple high-demand appliances simultaneously. The 3,500-watt peak output gives it a brief surge capacity for motor startup, which matters when powering devices with inrush current demands. ECHO positions this unit for homeowners managing short outages, campers needing overnight power, and contractors powering hand tools on job sites where grid access is unavailable. | The Firman T04073 is a 4,000-watt tri-fuel generator that runs on gasoline, propane, or natural gas. On gasoline, it delivers 5,000 starting watts and 4,000 running watts, enough to power a refrigerator, microwave, and multiple household circuits simultaneously. On propane, output drops to 3,600 running watts, and on natural gas it falls to 3,200 running watts. This fuel flexibility means users can switch between sources based on availability and cost, a significant advantage during extended outages or in remote locations where one fuel type may be scarce.
The T04073 targets homeowners, RV owners, and job site operators who need reliable backup power without the commitment to a single fuel source. Its 5-gallon tank runs for 14 hours at 25% load on gasoline, translating to roughly one week of emergency backup if you run it a few hours per day. The unit includes a wheel kit, making it easier to position despite its 123.4-pound weight. |