DuroStar DS10000EH
8000 W, dual-fuel
Firman H08052
Generator. Specs from the manufacturer page (checked ).
The Firman H08052 is a dual-fuel generator with 8000 W running output and 10,000 W starting output on gas, or 7250 W running and 9050 W starting on LPG. It has a 439cc engine, an 8-gallon tank, and 120/240-volt outlets.
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Running
8000W
Peak / surge
10000W
Fuel
dual-fuel
Run time @50 %
12h
Weight
96.2kg
Warranty
3yr
Key features
- 439cc dual-fuel engine with recoil start and electric start
- Running watts 8000W (GAS), 7250W (LPG); starting watts 10,000W (GAS), 9050 (LPG)
- 8-gallon tank with fuel gauge; up to 12 hours of run time at 50% load
- Low oil shut off and CO Alert sensor against carbon monoxide poisoning
- Covered outlets: 5-20R 120V 20A duplex GFCI, L5-30R 120V 30A twistlock, L14-30R 120V/240V 30A twistlock, 14-50R 120V/240V 50A
- 3-year warranty
Specifications
| Running watts | 8000 W |
|---|---|
| Peak / surge | 10000 W |
| Fuel | dual-fuel |
| Tank | 30.28 L (8.0 gal) |
| Run time at 50 % load | 12 h |
| AC output voltage | 120/240 volts |
| Weight | 96.2 kg (212.1 lb) |
| Warranty | 3 years |
From the Firman page. Values the manufacturer does not publish are left out.
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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 37 →
- Wiring diagram, manual page 38 →
- Wiring diagram, manual page 39 →
- Wiring diagram, manual page 40 →
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
How long does the Firman H08052 run on a tank?
The maker rates it at 12 hours at 50 % load (about 4,000 W) on a 8.0-gal tank. A light load such as a refrigerator and lights runs longer; a full load runs shorter.
Can the Firman H08052 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.