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FIRMAN T04073 Tri Fuel Portable Generator, 4000W Electric Start, 120/240V, CO Alert, Quiet 67dB, 223cc Engine, 5-Gallon Tank, 14 Hrs Runtime, Wheel Kit, Use for Home Backup, Camper Van & Outdoor Event
FIRMAN T04073 Portable Generator – If you’re looking for a reliable power source, the Firman T04073 Tri Fuel Portable Generator is an excellent option. With a robust 4000W electric start feature, this generator is capable enough to provide the power you need for various applications, whether for home backup or on-the-go use in a camper van.
Key Features of the Firman T04073
This generator is equipped with a 223cc engine, running quietly at just 67db while delivering impressive performance. With a 5-gallon fuel tank, you can enjoy a runtime of up to 14 hours on a single fill, making it perfect for prolonged usage. Additionally, the 120/240V output allows you to power multiple devices simultaneously, enhancing its versatility.
- Tri-fuel versatility: Runs on gasoline, propane (LPG), or natural gas (NG), providing flexible power sources for home, RV, jobsite, or off-grid use
- Powerful & reliable: Delivers 5000 starting watts and 4000 running watts at 120/240V for reliable backup power for appliances, tools, and more
- Safe & quiet operation: CO Alert system automatically shuts down the generator if unsafe CO levels are detected; operates at a quiet 69dB
- Extended runtime & portability: 5-gallon tank for up to 14 hours of continuous power; includes 8” wheel kit and folding handle for easy transport
Specifications
| Brand Name | Firman |
| Model Name | Tri Fuel Portable Generator |
| Model Number | T04073 |
| Wattage | 4000 watts |
| Fuel Type | Gasoline, Propane, Natural Gas |
| Power Source | Fuel Powered |
| Recommended Uses For the Product | Camping, Commercial, Residential |
| Voltage | 120 Volts |
| Output Wattage | 4000 |
| Additional Features | Automatic Shut Down, CO Sensor, Electric Start, Super Quiet, Tri-Fuel |
| Engine Type | Internal Combustion Engine |
| Ignition System Type | Electric Start |
| Tank Volume | 5 Gallons |
| Engine Displacement | 223 Cubic Centimeters |
| Runtime | 14 hours |
| Total Power Outlets | 3 |
| Frequency | 60 Hz |
| Starting Wattage | 5000 Watts |
| Running Wattage | 4000 Watts |
| Item Weight | 129 Pounds |
| Item Dimensions L x W x H | 28.3″L x 18.1″W x 21″H |
Why Choose the Firman T04073?
The Firman T04073 stands out not only for its power but also for its built-in CO alert system, which helps keep you safe during operation. Its wheel kit makes it easy to transport, ensuring that you can take it wherever you need. Whether you are preparing for power outages, camping, or working on outdoor projects, this generator is a reliable companion.
The Best FIRMAN Generator for Work
 |  |  |  | |
| T04073 | WT05571 | T09275 | T12071 | |
|---|---|---|---|---|
| View Product | View Product | View Product | View Product | |
| Fuel Type | Tri-Fuel – Gas/LPG/NG | Tri-Fuel – Gas/LPG/NG | Tri-Fuel – Gas/LPG/NG | Tri-Fuel – Gas/LPG/NG |
| Starting Watts | 5000(Gas) 4500(LPG) 4000(NG) | 6850 Gas / 6250 LPG / 5500 NG | 9200(Gas) 8300(LPG) 6900(NG) | 15000(Gas)13750(LPG) 12500(NG) |
| Running Watts | 4000(Gas) 3600(LPG) 3200 (NG) | 5500 Gas / 5000 LPG / 4500 NG | 11400(Gas) 10400(LPG) 8650(NG) | 12000(Gas) 11000(LPG) 10000(NG) |
| CO Alert | √ | √ | √ | √ |
| Output Voltage | 120V/240V | 120V/240V | DC 12V | 120V/240V | 120V/240V | DC 12V |
| Engine Size | 223cc | 322cc | 459cc | 760cc |
| Run Time | 14 hrs @ 1/2 load | 14.5 hrs @ 1/4 load | 11 hrs | 11 hrs @ 50% load |
| Noise Level | 67dB @ 1/4 load | 67dB @ 1/4 load | 74dB @ 1/2 load | 81dB @ 1/4 load |
FAQs
- What is an inverter?
FIRMAN inverter generators automatically adjust their engine RPM to align with the power needs of your appliances, enhancing fuel efficiency, reducing noise, and prolonging engine life—providing clean and reliable power whenever and wherever you need it. - Who manufactures FIRMAN’s engines?
At FIRMAN, we construct our generators from the ground up, designing and producing every component in-house—from the sturdy frame to the robust engine—ensuring exceptional quality control and dependable performance. - What type of fuel should I use?
Use regular unleaded gasoline with an 87 octane rating from a gas station. If you opt for higher octane fuels or recreational fuel, you will need to switch to the appropriate NGK plus spark plug to avoid carbon buildup caused by fuel fouling. - How long can a generator run on a 20lb propane tank?
LPG consumes about 1 gallon per hour at 50% load. With FIRMAN inverter generators, a standard 5-gallon propane tank can provide up to 8 hours of operation at 50% load, allowing for extended use, improved fuel efficiency, and fewer interruptions for refueling. - Can I safely connect two FIRMAN inverter generators in parallel to increase power output?
Yes, you can link compatible FIRMAN inverter generators in parallel to double your power output, making it perfect for running larger appliances or meeting higher energy demands with enhanced flexibility and efficiency.
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