It's able to run up to 18 hours on a 3.4-gallon tank with dual fuel ... along this inverter generator from Champion Power Equipment. Said to be "RV-ready," this generator contains 4,500 watts ...

Like other Champion dual-fuel generators, this one includes the adapter hose to hook up a 20-pound propane tank. The Harbor Freight Predator 9500 is a large inverter, capable of powering all the ...