WEN · Inverter generator · Model DF451i
DF451i Super Quiet 4500-Watt Electric Start Dual Fuel RV-Ready Portable Inverter Generator with Fuel Shut-Off
Infographic gallery
4,500W maximum starting output
Bars compare WEN's published running and starting capacity for each fuel configuration.
Dual fuel: gasoline + propane
Model-specific energy system and manufacturer-published operating information.
Capacity
The lightweight design along with the built-in wheels and folding handle make for easy portability while the ultra-efficient 2.2-gallon tank provides up to 8.5 hours of half-load run time (or 9 hours half-load run time on a 20-pound LPG tank).
Published runtime
Auto Fuel Selection Technology automatically switches from propane to gasoline for longer run times.
113.5 lb (official listing weight)
Official listing weight
Starting
Electric start with recoil backup
Voltage
120V
Fuel shutoff
Published
CO shutdown
Not listed
Official product gallery
This gallery uses the current official image set published for model DF451i.
Complete specifications
Output, engine, fuel, runtime, outlet, sound, weight, safety, price, and warranty details come from WEN's current official collection, model description, product imagery, and manual link.
Product overview
Dual fuel design runs on both gasoline (4500 surge watts, 3500 rated watts) and propane (4500 surge watts, 3150 rated watts).
Published WEN feature
Dual fuel design runs on both gasoline (4500 surge watts, 3500 rated watts) and propane (4500 surge watts, 3150 rated watts)
Output and operation
Auto Fuel Selection Technology automatically switches from propane to gasoline for longer run times
Controls and convenience
EPA III 212cc engine provides extremely quiet operation (58 dBA at quarter load, 22 feet)
Power-panel capability
Produces clean power to prevent damage to sensitive electronics such as smartphones, tablets and laptops
Protection and ownership
Includes keyless electric start, back-up recoil starter, fuel shut-off for easier maintenance, onboard wheels and carrying handle, two three-prong 120V receptacles, one RV-ready AC 120V NEMA TT-30R receptacle, one 12V DC receptacle, one 5V USB port, a digital load and fuel display, and a three-year limited warranty
Best-fit uses
Standout features
Use the independent wattage calculator before buying.
Ownership resources
Start with the exact WEN DF451i model or item number. Accessory families can look alike while using different connectors, electrical limits, engines, or mounting points.
Compatible accessories
Use a correctly rated cord or professionally selected inlet connection for the intended load.
This model’s published information references parallel operation. Use the manufacturer’s matching kit and pairing rules.
Model-matched filters, spark plugs, batteries, oil supplies, and service parts support scheduled maintenance.
A fitted storage cover protects a cooled, stored generator. A running shelter must be designed for generator operation.
Compatibility note: Links lead to manufacturer or official retailer resources. Confirm the full model or item number, connector type, voltage, amperage, and published compatibility list before buying. Installation involving a home panel, inlet, transfer switch, or fuel plumbing should be handled as required by local code.