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The Champion 4000-Watt RV-Ready Open Frame Inverter is a dual-fuel portable generator that runs on gasoline or propane. It delivers 4000 starting watts and 3300 running watts on gasoline, or 2970 running watts on propane, with less than 3% total harmonic distortion, so it is safe for sensitive electronics. Electric start with an included battery and a long propane run time make it a practical choice for RV trips and home backup. Against inverter rivals, its open frame is louder and heavier than enclosed units, but dual-fuel operation and clean power set it apart at its tier.
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Lowest price we've seen: $635.00 on Nov 14 at The Home Depot. Tracked across 2 stores since Nov 14.
Owners of Champion's dual-fuel inverter line generally praise the clean power, easy electric start and propane flexibility. Common complaints center on noise from the open frame and the modest gasoline tank.
This is a 4000-watt open-frame inverter generator from Champion Power Equipment. It is RV ready and runs on either gasoline or propane. It is powered by a 149cc engine and has an electric start, with the battery included.
It produces 3300 running watts on gasoline and 2970 running watts on propane. Total harmonic distortion is less than 3% THD.
