Westinghouse 12500W Dual Fuel review
Westinghouse 12500 Peak Watt Dual Fuel Home Backup Portable Generator, Remote Electric Start, CO Sensor
By Tom Calder
Key specs
The maker's figures.
- Running watts
- 9,500 W
- Starting watts
- 12,500 W
- Fuel
- Gasoline or propane
- Weight
- 212.1 lb
9,500 running watts on gasoline (8,500 on propane), a key-fob remote start, automatic CO shutdown, and both a 30-amp L14-30R and a 50-amp 14-50R outlet for a transfer switch.
- Best for
- Big home backup with remote start
- Skip it if
- You only need the refrigerator and a few lights
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Researched, not used. We haven't used this product. This review is built from the maker's specifications, owner reports and our own sizing.
What we like
- Automatic CO shutdown
- Remote start
- 30A and 50A outlets
Worth knowing
- 212 lb
- Open frame: louder than an inverter
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Our review
Westinghouse's WGen9500DFc is a dual fuel portable generator rated at 9,500 running watts on gasoline and 8,500 on propane, with a remote key fob start and a carbon monoxide sensor that shuts it down. This review covers the ratings, outlets, run times and weight as Westinghouse states them, and the outdoor-only rules.
What it is and who it suits
Westinghouse lists the WGen9500DFc as a 457cc four-stroke OHV generator that runs on gasoline or propane and switches between them without shutting off. It starts at the push of a button or from a key fob, with a recoil start as backup, and Westinghouse describes it as ideal for home backup and transfer switch ready. A battery, a battery float charger and a propane regulator and hose are listed in the box.
It suits a household with a larger home and a professionally installed transfer switch that wants to run a lot at once. It is not a camping generator: Westinghouse gives its dry weight as 212.1 pounds, with 227.1 pounds as the shipping weight.
Ratings as Westinghouse states them
On gasoline, Westinghouse lists 12,500 peak watts and 9,500 running watts. On propane the figures drop to 11,200 peak and 8,500 running watts. The running figure is what the generator can supply continuously, while peak is a brief surge, so size your loads against running watts for the fuel you will use.
Outputs are two GFCI 5-20R household duplex outlets, one L14-30R 120/240-volt twist-lock marked transfer switch ready, and one 120/240-volt 14-50R, with rubber outlet covers. A display shows voltage, frequency and lifetime hours. The total harmonic distortion is listed at 23% or less, so check the maker of any sensitive electronics before plugging them in.
Run time, noise and fuel
The spec table gives a gasoline run time of 12 hours at 25% load and 8 hours at 50% load from the 6.6-gallon tank. Propane is listed at 7 hours at 50% load, and the bullet text says up to 7 hours on a 20-pound propane tank. All are maker figures at set loads, and a heavier load will shorten them. Westinghouse says noise can be as low as 74 dBA.
Westinghouse lists a 3-year limited residential warranty and a 1-year commercial warranty. It also lists the generator as not CARB compliant, so check your state's emissions rules before buying. We could not read the user manual here, so read it for the oil, fuel and storage steps.
Carbon monoxide: the sensor helps, the rules still apply
Westinghouse lists a carbon monoxide sensor with automatic shutdown, plus automatic low oil shutdown and overload protection. Treat that as a backup, not permission to relax. Ready.gov says generators and fuel should always be used outdoors and at least 20 feet away from windows, doors and attached garages. CDC says never to use a generator inside your home, basement or garage, or less than 20 feet from any window, door or vent.
CDC says to use a battery-powered or battery backup CO detector in your home when using a generator, and CPSC says to test alarms every month. Our carbon monoxide alarms page compares alarms, and our generator safety guide covers cords, wet weather, refueling and backfeeding.
Connecting it to the house
CPSC says never to try to power the house wiring by plugging a generator into a wall outlet, a practice known as backfeeding, which it says is extremely dangerous and presents an electrocution risk to utility workers and neighbors. Westinghouse marks the L14-30R outlet as transfer switch ready; have a qualified electrician install any transfer switch or inlet. Our transfer switch comparison and home backup generator page explain the options.
Who should skip it
Skip it if you only need a refrigerator and a few lights, since a smaller unit such as the Champion 4500-watt inverter is lighter and lists lower running watts. Skip it if you need a quiet unit or cannot move 212 pounds, and see the DuroMax XP5500EH review for another dual fuel model with lower running watts.
A researched review, built from the maker's specs, manual and US listings; facts checked 30 Oct 2026. Sources: Westinghouse: WGen9500DFc product page and specifications; Ready.gov: Power Outages; CDC: What to Do to Protect Yourself During a Power Outage; CPSC: Keep Warm and Safe This Winter; CPSC: Portable Generator Safety Alert.
Who shouldn't buy this
Don't buy it if you only need the refrigerator and a few lights: a 3,500-watt inverter covers that.
This is a Researched review: we haven't used this product. We check every specification against at least two independent sources, re-check the US price on a schedule where we can track it automatically, and say plainly who it isn't for. Commissions never change a rating.
If this isn’t the one
Best for The benchmark quiet inverter generator
Read the review →Best for Running a fridge, furnace fan and lights at once
Read the review →Questions
What are the running watts on gasoline and propane?
Westinghouse lists 9,500 running and 12,500 peak watts on gasoline, and 8,500 running and 11,200 peak watts on propane. Size your loads against the running figure for the fuel you will use.
Can I run it in a garage with the door open?
No. CDC says never to use a generator inside your home, basement or garage, or less than 20 feet from any window, door or vent. Ready.gov says to keep it at least 20 feet from windows, doors and attached garages.
Does the CO sensor replace a carbon monoxide alarm?
No. Westinghouse lists the sensor as shutting the generator down, but CDC says to use a battery-powered or battery backup CO detector in your home when running a generator, and CPSC says to test alarms every month.
Can I plug it into a wall outlet to power the house?
No. CPSC says never to power the house wiring by plugging a generator into a wall outlet, known as backfeeding. Use a transfer switch or inlet installed by a qualified electrician.