Westinghouse 12500 Watt Dual Fuel Home Backup Portable Generator
- Generator
- 9500 watts
- 12500 watts
- 9500 watts
- Better rated than 75%
- More reviewed than 90%
Whole-home backup with a choice of fuel, gasoline or propane, plus remote start and outlets ready for a transfer switch or an RV.
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How it ranks among the 20 generators we track
4.7★ across 8,800 Amazon ratings, Bayesian-smoothed toward the category average.
8,800 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
500+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 20 generators we track - how the scorecard works · full generators data report. Confidence: high - strong rating volume and complete data.Updated 7 days ago. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
A dual-fuel portable generator producing 9500 running/12500 peak watts on gasoline or 8500 running/11200 peak watts on propane. Remote electric start and a 457cc Westinghouse OHV engine with a 6.6 gallon tank.
Dual-fuel flexibility is the headline feature: the same engine runs on gasoline or propane, which matters most for anyone stocking backup power where one fuel source might run short during an extended outage. Remote start via a key fob means starting the generator does not require walking out to a cold engine and pulling a recoil cord, though a recoil backup is included. The listed outlets include a 30A transfer-switch-ready receptacle and a 50A RV-ready receptacle, positioning this as a whole-home backup unit paired with a transfer switch rather than just a jobsite generator.
- 9500 running / 12500 peak watts (gas)
- 457cc Westinghouse OHV engine, cast iron sleeve
- Remote electric start with key fob
- 3-year limited service and parts coverage
Who it's for
Fits homeowners setting up whole-house backup power through a transfer switch, or RV owners who want a 120/240V 50A connection. Less suited to anyone who only needs a small, quiet unit for camping or light tool use.
Strengths and trade-offs
Drawn from this product's published specifications.
- Runs on gasoline or propane interchangeably
- Remote key fob start, no cold pulls
- Transfer-switch-ready and RV-ready outlets included
- Up to 12 hours runtime per gas tank
- Lower output on propane than gasoline
- Heavy-duty engine adds bulk versus small inverter units
Performance notes
Built around a 457cc Westinghouse OHV engine with a cast iron sleeve, the unit is rated for extended duty: up to 12 hours of runtime on a 6.6 gallon gasoline tank at moderate load, with output dropping somewhat on propane (8500 running watts versus 9500 on gas). Automatic low oil shutdown and a digital hour meter with a VFT display for voltage, frequency and lifetime hours are built in to protect the engine and track maintenance intervals. Two GFCI-protected household outlets plus the 30A transfer-switch and 50A RV receptacles are what let it serve as either whole-home backup or RV power, depending on which outlet you use.
Specifications
| Brand | Westinghouse |
|---|---|
| Model | WGen9500DF |
| Dimensions & fit | |
| Item Weight | 210 pounds |
| Item Dimensions L x W x H | 27.2 × 26.1 × 26.5 inches |
| Capacity & performance | |
| Output Wattage | 9500 watts |
| Power & efficiency | |
| Wattage | 12500 watts |
| Running Wattage | 9500 watts |
| Starting Wattage | 12500 watts |
| Power Source | Corded electric |
| Fuel Type | Gasoline, Propane |
| Voltage | 120 volts |
| Total Power Outlets | 6 |
| Construction & materials | |
| Material Type | Metal (Steel/Cast Iron), Rubber |
| Color | - CARB Compliant |
| Included components | |
| Included Components | Battery Charger, Engine Oil & Funnel, Key FOB, Owner's Manual, Propane Hose, Quick-Start Guide, Warranty |
| Warranty & support | |
| Warranty Description | 3 years |
| Other details | |
| Ignition System Type | electric start |
| Engine Type | 4 Stroke |
| Number of Items | 1 |
| Engine Displacement | 457 cubic centimeters |
| Additional Features | Automatic Voltage Regulation, Dual Fuel, Electric Start, Fuel Gauge, Hour Meter |
| Recommended Uses For Product | Residential |
| Runtime | 12 hours |
| Frequency | 60 hertz |
| Item Type Name | Open Frame Generators |
Other Westinghouse generators
How it compares
This product against the closest alternatives we track in generators.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Westinghouse 12500 Watt Dual Fuel Home Backup Portable GeneratorThis product | 4.7 / 5 | 8,800 | 4.7 / 5 |
| Jackery Explorer 300 Portable Power StationJackery | 4.6 / 5 | 11,100 | 4.6 / 5 |
| Honda EU2200i 2200 Watt Inverter GeneratorHonda | 4.7 / 5 | 3,200 | 4.4 / 5 |
| Anker SOLIX C1000 Gen 2 Portable Power StationAnker | 4.7 / 5 | 1,500 | 4.4 / 5 |
| EF ECOFLOW Portable Power Station Delta 3 ClassicEF | 4.7 / 5 | 1,200 | 4.3 / 5 |
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Questions about the Westinghouse WGen9500DF
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Can the WGen9500DF run on propane instead of gas?
Yes, it is dual fuel, though output drops to 8500 running / 11200 peak watts on propane versus 9500/12500 on gasoline.
Is it ready for a transfer switch?
Yes, it includes a 120V L14-30R 30A transfer-switch-ready outlet for whole-home backup setups.
How long does it run on a full tank?
Up to 12 hours on the 6.6 gallon gasoline tank, depending on load.