Compare Generators Side-by-Side
Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.
- DuroStar DS10000EH
- Westinghouse WGen20000TFc
Quick charts
Each chart uses its own Y-axis scale (so numbers are comparable within a chart).
Running watts
W
Starting watts
W
Noise
dB
Runtime @50%
h
Running watts by fuel
Shows how output changes across gasoline/propane/natural gas (when available).
| Specification | DuroStar DS10000EH | Westinghouse WGen20000TFc |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Tri-Fuel |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | Yes | Yes |
| Running watts | 8000 W | Winner: Winner: 20000 W |
| Starting watts | 10000 W | Winner: Winner: 28000 W |
| Noise (lower limit) | Winner: Winner: 72 dB | 79 dB |
| Weight | Winner: Winner: 220 lbs | 557 lbs |
| Run time @50% load | 10 h | Winner: Winner: 10.5 h |
| Run time @25% load | 22 h | 13 h |
| Fuel tank | 8.3 gal | 17.17 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 29 x 30 x 26 | 38 x 35 x 40.4 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120/240 |
| Voltage (DC) | 12 | Not available |
| GFCI outlets | Yes | Yes |
| Covered outlets | No | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | 12 % | 5 % |
| Engine | ||
| Engine | 439 cc OHV 4-stroke, cast iron sleeve | 999 cc OHV V-Twin, cast iron sleeve |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric | Electric, Remote |
| Warranty | ||
| Warranty | 3 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 8000 W | 20000 W |
| Starting watts | 10000 W | 28000 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 | 10.5 h |
| Run time @25% load | 22 h | 13 h |
| Propane | Not available | Not available |
| Running watts | 7600 W | 18000 W |
| Starting watts | 9500 W | 25500 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 | 4.5 h | 2.5 h |
| Run time @25% load | 8.5 h | 3 h |
| Natural gas | Not available | Not available |
| Running watts | Not available | 16000 W |
| Starting watts | Not available | 22400 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 |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | false |
| Compliance | CARB, EPA | EPA, ANSI/PGMA G300-2023 |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Not available | Bonded Neutral |
| UPC | 811640014421 | 850032657785 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 8000 | 20000 |
| Running Watts (Propane) | 7600 | 18000 |
| Running Watts (Natural Gas) | Not available | 16000 |
| Starting Watts (Gasoline) | 10000 | 28000 |
| Starting Watts (Propane) | 9500 | 25500 |
| Starting Watts (Natural Gas) | Not available | 22400 |
| Runtime @ 50% Load (Gasoline) | 10 | 10.5 |
| Runtime @ 50% Load (Propane) | 4.5 | 2.5 |
| Runtime @ 25% Load (Gasoline) | 22 | 13 |
| Runtime @ 25% Load (Propane) | 8.5 | 3 |
| AC Outlet Types | AC outlets1x Duplex 120V 20A (5-20R)1x 120V 30A (L5-30R)1x 120/240V 30A (L14-30R)1x 120/240V 50A (14-50R) | 2x Duplex 120V 20A (5-20R) GFCI; 1x 120V 30A (L5-30R); 2x 120/240V 30A (L14-30R); 2x 120/240V 50A (14-50R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | 439 cc OHV 4-stroke, cast iron sleeve | 999 cc OHV V-Twin, cast iron sleeve |
| Engine Displacement | 439 | 999 |
| Cylinder Sleeve | Cast iron sleeve | Cast Iron Sleeve |
| Alternator Winding Material | Copper | Copper windings |
| Engine Oil Type | Not available | SAE 10W-30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 22 | 13 |
| Runtime @ 50% Load (Gasoline) | 10 | 10.5 |
| Runtime @ 50% Load (Propane) | 4.5 | 2.5 |
| Outlets & connections | ||
| Transfer Switch Compatibility | Not available | Yes |
| Controls & display | ||
| Display Type | Not available | VFT Display |
| Idle Control System | Not available | Low Idle Control |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Low oil and overload protection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | No | Yes |
| Included equipment | ||
| Mobility Components | Not available | Wheels, Handles |
| Starting Components | Recoil, Electric | Electric start, Remote start |
| Fuel Connection Components | Not available | natural gas hose with NPT adapter, propane hose |
| Maintenance Components | Not available | Oil Bottle, Oil Funnel, Spark Plug Wrench |
| Documentation | Not available | User Manual |
| Included Accessories | Funnel, tool kit, propane hose, battery charging cables, battery, and wheel kit | Oil, funnel, tool kit, key fob, battery charger, natural gas hose with NPT adapter, propane hose, battery, and wheel kit |
| Warranty & identification | ||
| Residential Warranty | Not available | 3 Year Limited |
| Commercial Warranty | 3 | 1 Year Limited |
| Part Number | Not available | WGen20000TFc |
| Additional specs | ||
| Summary | The DuroStar DS10000EH is an 8,000-watt dual-fuel generator built on a 439 cc OHV 4-stroke engine with cast iron sleeve construction. At 8,000 running watts, this unit can power multiple household appliances simultaneously, job site tools, or serve as extended backup during outages. The dual-fuel design means users can run gasoline or propane depending on fuel availability and storage constraints, a significant advantage during supply disruptions.
Because the DS10000EH runs at 72 dB, placement matters. At 25 feet, the noise becomes manageable for residential use; closer proximity requires hearing protection or evening restrictions. The 8.3-gallon tank delivers 22 hours at 25% load on gasoline, making extended operations feasible without constant refueling. On propane at the same load, runtime drops to 8.5 hours due to lower energy density. This runtime flexibility shapes real-world deployment: gasoline for long-term backup, propane for shorter bursts or when storage space is limited. | The Westinghouse WGen20000TFc is a 20,000-watt tri-fuel generator built for high-demand applications where fuel flexibility matters. Tri-fuel operation means you can run gasoline for peak output, natural gas for stationary backup, or propane for portable fuel options. This wattage class handles whole-house backup, large job sites, and RV power simultaneously without compromise. The tri-fuel design trades simplicity for adaptability, letting you choose the fuel source that matches your situation rather than locking you into one supply chain. |
- Most PowerfulWestinghouse WGen20000TFc20000W running
- QuietestDuroStar DS10000EH72 dB
- Longest RuntimeWestinghouse WGen20000TFc10.5h at 50% load
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DuroStar DS10000EH
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Westinghouse WGen20000TFc
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