DuroStar DS10000EH
8000 W, dual-fuel
Firman T08072
Generator · T08072. Specs from the manufacturer page (checked ).
The FIRMAN T08072 is a tri-fuel portable generator that runs on gasoline, propane (LPG), or natural gas. It is rated for 8000 running watts and 10000 starting watts on gasoline, and operates at 120/240 volts.
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Running
8000W
Peak / surge
10000W
Fuel
tri-fuel
Key features
- Runs on gasoline, propane (LPG), or natural gas (NG)
- Gasoline: 8000 W running / 10000 W starting
- Propane: 7250 W running / 9050 W starting
- Natural gas: 5500 W running / 6900 W starting
- Powered by FIRMAN Max Pro Series 439cc engine with Phoenix Fat Head Block
- Electric start
- Can be paired with a transfer switch for home backup use
What it is for
- home backup
- job site
- off-grid use
Specifications
| Running watts | 8000 W |
|---|---|
| Peak / surge | 10000 W |
| Fuel | tri-fuel |
| AC output voltage | 120/240V |
From the Firman page. Values the manufacturer does not publish are left out.
What is in the box
- Engine oil bottle
- Oil funnel
- Spark plug wrench
- Double open-ended wrench (10mm, 12mm)
- LPG regulator with hose holder
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Connection and wiring
Follow the diagrams in the Firman manual. Connecting to a home panel needs a transfer switch or interlock and a licensed electrician.
- Wiring diagram, manual page 2 →
- Wiring diagram, manual page 40 →
- Wiring diagram, manual page 41 →
- Wiring diagram, manual page 42 →
Error codes and troubleshooting
| Code | Meaning | What to do | Manual page |
|---|---|---|---|
| Circuit Breakers | The receptacles are protected by an AC circuit protector that trips if the generator is overloaded or an external short circuit occurs. | Disconnect all electrical loads and determine the cause before using the generator again. If overloading caused the trip, reduce the load. Reset by pressing the protector button. Continuous tripping may damage the generator or equipment. | 8 |
| Oil Warning Indicator Light | Indicates the oil has fallen below the minimum level. The engine stops automatically and will not start until the proper amount of oil is in the crankcase. | Check the oil level when this light turns on. Add the proper amount of engine oil to the crankcase before attempting to start the engine. | 8 |
| Overload Indicator Light | Connected devices have exceeded the generator's wattage or amperage capacity, or a power surge occurred. The AC Power light goes off, the engine keeps running, and power to the receptacles is cut. | Keep the total power drawn from all receptacles within the nameplate rating. | 8 |
| Circuit Breaker | The receptacles are protected by an AC circuit protector that trips if the generator is overloaded or an external short circuit occurs. | Disconnect all electrical loads and find the cause before using the generator again. If overloading caused the trip, reduce the load. Reset by pressing the button on the protector. Continuous tripping may damage the generator or equipment. | 9 |
| Output Ready | Stays on during normal operation. Turns off when the generator is overloaded. | — | 9 |
| AC Reset | The inverter has entered a protective state and AC output is interrupted. | Press the AC Reset Button to restore the output. | 12 |
6 of 13 codes. From the Firman manual. All 13 WH03242 / T09371 / H07553 / W03083 codes →
FAQ
Can the Firman T08072 start a sump pump or well pump?
Starting surge matters more than running watts: this unit is rated 10000 W peak. That covers a typical 1/2 HP sump pump (about 2150 W to start). Use the calculator with your exact pump.