Westinghouse names its two generator families plainly: iGen models are inverter generators, and WGen models are conventional open-frame generators. Both can power an RV, but they suit different kinds of trips.
iGen inverter generators
- Quiet: most iGen models are rated as low as 52 dBA.
- Clean power: 3% THD or less, safe for laptops, TVs and RV electronics.
- Efficient: the engine slows down under light loads. The iGen5000c runs up to 18 hours at 25% load.
- Parallel capable: you can link two units for more power.
- Lighter for the watts: the iGen1500c weighs 33 lb.
WGen open-frame generators
- More watts per dollar: the WGen5300DFcv makes 5,300 running watts on gas and costs less than inverters of similar output.
- Home-backup ready: the WGen5300DFcv has a 120V or 120/240V selector and is transfer-switch ready.
- Long runtime: the WGen5300sc has a 4.7-gallon tank and runs up to 14.5 hours.
- Trade-offs: louder, heavier, and the power is less clean for sensitive electronics.
Which is right for you?
For campgrounds with quiet hours, choose an iGen. For boondocking far from neighbors, job sites, or a generator that doubles as home backup, a WGen gives you more power for less money. The WGen3600DFcv is the smallest open-frame option, with 3,600 running watts and an RV-ready outlet.