The Westinghouse iGen4500DF is a dual-fuel inverter generator rated for 3,700 running/4,500 peak watts on gasoline and 3,330/4,050 on propane. It produces 120 volts only, which is the first compatibility test for home backup.
What the inverter design buys
Westinghouse lists total harmonic distortion below 3%, variable engine speed, electric and remote start, a TT-30R RV outlet, two 5-20R household outlets, and USB ports. The product page states up to 18 hours at 25% load from its 3.4-gallon gasoline tank and a weight of 104.7 pounds.
Those are useful camping and selected-appliance features. They do not make the unit a 120/240-volt whole-house source. Build a running-and-starting load list within the rating for the chosen fuel.
Safety and connection
Use listed cords to individual loads or have a qualified electrician design compatible 120-volt transfer equipment. Never backfeed a panel. The exact iGen4500DF manual says to operate outdoors away from building openings. CPSC says portable generators belong outdoors at least 20 feet from the home, with exhaust facing away from the home and nearby buildings; see its carbon-monoxide guidance . Fuel type does not change the hazard.
Propane reduces rated output but avoids stale gasoline in the carburetor; gasoline supplies the higher rating. Plan storage, cold-weather cylinder performance, oil service, battery charging, and exercise runs.
Verdict: the iGen4500DF fits RV use and a modest 120-volt emergency-load plan. Buyers needing 240 volts or substantially more simultaneous load need a different class of generator.