Westinghouse WGen20000c
Generator. Specs from the manufacturer page (checked ).

The Westinghouse WGen20000c is a gasoline-powered portable generator rated at 20,000 running watts and 28,000 peak watts. It has a 999cc V-Twin OHV engine, a 17.2 gal (65 L) fuel tank, and 120/240V AC output at 60 Hz.
Key features
- Push-button remote electric start with a key fob
- Outlets: two 120V 5-20R, one 120V L5-30, two 120/240V L14-30R, two 120/240V 14-50R, with GFCI outlets and outlet covers
- Total harmonic distortion less than 5%
- Transfer switch ready, with an interlock kit or Westinghouse WATS200 automatic transfer switch sold separately
- Fuel tank 17.2 gal (65 L) with a built-in fuel gauge
- Run time: the headline says up to 11 hours at 50% load, while the spec table lists 8 hrs at 50%
- CO sensor shuts down the generator when elevated carbon monoxide is detected
- Automatic low-oil shutdown and overload protection
What it is for
- Home backup
- Travel trailer
- Jobsite
Specifications
| Running watts | 20000 W |
|---|---|
| Peak / surge | 28000 W |
| Fuel | gasoline |
| Tank | 65 L (17.2 gal) |
| Run time at 50 % load | 8 h |
| Noise | 74 dB |
| CO shutoff | Yes |
| AC output voltage | 120/240V |
| Weight | 245 kg (540.1 lb) |
| Dimensions | 96.5 × 88.9 × 102.6 cm (38.0 × 35.0 × 40.4 in) |
| Warranty | 3 years |
From the Westinghouse page. Values the manufacturer does not publish are left out.
What is in the box
- Oil Bottle
- Oil Funnel
- Spark Plug Wrench
- Assembly Wrench
- Remote Start Key FOB
- Battery Float Charger
- Handle Lock Pins
- User Manual
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Connection and wiring
We have not linked an official manual for this model yet; see the Westinghouse page.
Error codes and troubleshooting
We have not found an official code table for this model yet.
FAQ
How long does the Westinghouse WGen20000c run on a tank?
The maker rates it at 8 hours at 50 % load (about 10,000 W) on a 17.2-gal tank. A light load such as a refrigerator and lights runs longer; a full load runs shorter.
Can the Westinghouse WGen20000c start a sump pump or well pump?
Starting surge matters more than running watts: this unit is rated 28000 W peak. That covers a typical 1/2 HP sump pump (about 2150 W to start). Use the calculator with your exact pump.