Head to head
Westinghouse WGen14500DFc vs Generac GP18000EFI COsense
Westinghouse · Portable Generator
Westinghouse WGen14500DFc
~$3,499
14,500 W / 18,000 W surge · up to well pump or a small central AC
Generac · Portable Generator
Generac GP18000EFI COsense
~$4,399
18,000 W / 22,500 W surge · up to whole home with central air
Quick takeThe Westinghouse WGen14500DFc lists about $900 lower; the Generac GP18000EFI COsense puts out more sustained power (18,000 W).
| Spec | Westinghouse WGen14500DFc | Generac GP18000EFI COsense |
|---|---|---|
| Approx. price | ~$3,499 | ~$4,399 |
| Type | Portable Generator | Portable Generator |
| Fuel | Dual Fuel (Gas/Propane) | Gasoline |
| Running / output watts | 14,500 W | 18,000 W |
| Starting / surge watts | 18,000 W | 22,500 W |
| Battery capacity | — | — |
| Expandable to | — | — |
| Noise | 74 dB | — |
| Runtime | Gas: up to 16 hrs at 25% load, 9 hrs at 50% on 10.5 gal; propane: 4 hrs at 50% on a 20 lb tank (13,000 W running on LP) | 9 hrs at 50% load on 14.2 gal |
| Outlets | 2x 120V 20A GFCI (5-20R), 1x 120V 30A (L5-30), 1x 120/240V 30A (L14-30R), 1x 120/240V 50A (14-50R), 2x USB | 2x 120V 20A (5-20R duplex), 1x 120V 30A (L5-30R), 1x 120/240V 30A (L14-30R), 1x 120/240V 50A (14-50R) |
| Fuel tank | 10.5 gal | 14.2 gal |
| Weight | 352 lbs | 442.8 lbs |
| Transfer-switch ready | Yes | Yes |
| Warranty | 3-year residential | 3-year residential, 2-year commercial |
Highlighted cell is the better figure for that row.
Owner pros and cons
Westinghouse WGen14500DFc
- +50-amp 14-50R outlet feeds a transfer switch directly
- +THD at or below 5% with copper windings is safe for electronics
- +Up to 16 hrs on gas at 25% load from a 10.5 gal tank
- −352 lbs and 74 dBA, the heaviest and loudest portable option listed
- −Electric and key-fob start only, no recoil backup
- −A 20 lb propane cylinder gives only about 4 hrs at half load
- −Costs about as much as a small standby unit
- −Not CARB compliant
Generac GP18000EFI COsense
- +14-50R outlet feeds a 50-amp transfer switch
- +22,500 W starting capacity handles a 5-ton AC
- +THD under 5% protects electronics
- +COsense CO shutdown, electric start and battery included
- +12-inch never-flat wheels for a 443 lb machine
- −Around 443 lbs, so it needs a ramp and two people
- −About 9 hrs at half load means refueling through the night
- −No noise figure published, and an 816cc twin is loud
- −$4,399 buys a Guardian 14kW standby before install
- −Gasoline only, with fuel that needs stabilizer if stored