Best Overall · 1 of 6
Westinghouse 12500 Watt Dual Fuel Home Backup Portable Generator

- 9500 running, 12,500 peak watts
- Dual fuel, key fob start
- 50A RV outlet, 457cc
Our take
The most powerful electric-start unit here, with a complete box. Pick it for big loads.
Why it made the shortlist
The Westinghouse WGen12500 lists 9500 running and 12,500 peak watts on gasoline, and 8500 running and 11,200 peak on propane. It has remote start with a key fob, electric and recoil start, up to 12 hours on a tank and a 457cc engine with low-oil shutdown and an hour meter.
It offers the most running watts of the six, more than 4000 above the Westinghouse 6600. The 50A RV-ready outlet and a transfer switch ready L14-30R make it the one for big rigs and home backup.
It suits owners who want one large dual-fuel generator ready for whole-home essentials. A key fob, charger, oil and tools come in the box.
What works
- Largest output of the six
- Gas and propane options
- 50A RV and transfer switch outlets
- Key fob, oil and tools included
Watch out for
- Propane watts drop to 8500
- The catch
- Propane running watts fall to 8500.







